CN207724585U - Portable cutter - Google Patents

Abstract

Portable cutter includes：Annular saw main body with rotating circular disk cutting blade；And it is covered with the fixed of a part for covering the outer radial periphery edge of cylinder blade fixed to annular saw main body.Annular saw main body is supported by pedestal, enabling adjusts angle of the annular saw main body in above-below direction and on left and right directions in the upside of pedestal.Another outer radial periphery edge of mechanical shoulder cut-off knife piece is covered by assist shroud.Assist shroud is in the vertical gap pivotally supported between the fixed cover of axis vicinity covering and pedestal of annular saw main body.Assist shroud is moved by assist shroud vertical shift mechanism relative to annular saw main body according to annular saw main body relative to the angle of pedestal in the up-down direction.Assist shroud is pivotally attached to pedestal in the lateral direction by lateral inclination support shaft.Assist shroud is pivoted around lateral inclination support shaft in the lateral direction according to the angle on the left and right directions of annular saw main body, by mutual interlocking gear.

Description

Portable cutter

Cross reference to related applications

The Japanese patent application serial number 2016-170728 submitted for 1st this application claims September in 2016 and in December, 2016 The priority of the Japanese publication serial number 2016-243659 submitted for 15th, the content of the full text of these patent applications is by quoting simultaneously Enter to herein.

Technical field

The utility model is related to the Portable cutters of such as portable circular saw, more particularly to for example with for receiving Collect the dustproof circular saw of the disposal box of clast.

Background technology

Japanese Patent Open Publication 2000-37705 (hereinafter referred to as Publication 705) and Japanese Patent Open Publication No. 2002-18811 (hereinafter referred to as Publication 811) discloses portable circular saw.Portable circular saw includes：With for making The annular saw main body of the motor of mechanical shoulder cut-off knife piece rotation；Rectangular susceptor for supporting annular saw main body；And it is fixed to annular saw master Body is covered with the fixed of peripheral surface for covering mechanical shoulder cut-off knife piece.The front end of annular saw main body is pivotally attached to pedestal so that can be upper Lower section adjusts upward pivoting angle of the annular saw main body relative to pedestal.In this way, it can adjust and determine mechanical shoulder cut-off knife piece Projecting height relative to pedestal.

According to open No.705, dust cover is pivotally attached to annular saw main body, so as to around in the radial direction of mechanical shoulder cut-off knife piece The identical radial center rotation of the heart.The position of dust cover be set as covering near the pivot point of annular saw main body fixed cover and Gap between pedestal.When annular saw main base pivots vertically relative to dust cover, the spacing between fixed cover and pedestal becomes Change.Dust cover is with the pivoting action of annular saw main body and relative to fixed cover rotation.In this way, no matter the pivot of annular saw main body How is gyration, and dust cover can reliably cover the gap between fixed cover and pedestal.Therefore, it is possible to prevent clast from admittedly Gap blowout between fixed cover and pedestal.

According to open No.881, sliding closure in a manner of vertical sliding motion can be connected to the fixed front end covered.When annular saw main body When pedestal pivots vertically relative to dust cover, the spacing variation between fixed cover and pedestal.Dust cover is relative to fixed cover rotation. Sliding closure is designed as no matter how the vertical pivoting angle of annular saw main body all covers the fixed gap covered between pedestal.

Vertical pivoting angle of the annular saw main body relative to pedestal before positioning, is adjusted in annular saw main body.Alternatively, it is also possible to Lateral inclination angle of the annular saw main body relative to pedestal is adjusted before positioning in annular saw main body.Therefore, it is necessary to following constructions： Not only vertical pivoting angle of the adjustment annular saw main body relative to pedestal, even if but also for example adjusting annular saw main body relative to pedestal In the case of lateral inclination angle, it can also be effectively prevented clast and be scattered.

Utility model content

In the one side of present disclosure, Portable cutter includes：With for making mechanical shoulder cut-off knife piece rotate The cutter device main body of motor；And fixed to cutter device main body to cover one of the outer radial periphery edge of mechanical shoulder cut-off knife piece The fixed cover divided.Cutter device main body is supported by pedestal so that can adjust the angle in upper and lower directions in the upside of pedestal to adjust Pitch circle disk cutting blade protrudes from the degree except pedestal in downward direction.Pedestal also supports cutter device main body so that can be with The angle on left and right directions is adjusted to adjust the lateral inclination angle of mechanical shoulder cut-off knife piece.Pedestal also supports cutter device main body, Allow to adjust the angle on left and right directions to adjust the lateral inclination angle of mechanical shoulder cut-off knife piece.The diameter of mechanical shoulder cut-off knife piece It is covered to outer peripheral edge by assist shroud.Assist shroud covers solid near the pivoting centre in the upper and lower directions of cutter device main body Gap between fixed cover and pedestal.Assist shroud is moved by assist shroud vertical shift mechanism.Assist shroud is according to cutter device main body Angle in the up-down direction is moved relative to cutter device main body.Assist shroud by lateral inclination support shaft in the lateral direction It is pivotally attached to pedestal.Assist shroud is rotated around lateral inclination support shaft in the lateral direction by mutual interlocking gear.Assist shroud according to Angle on the left and right directions of cutter device main body rotates in the lateral direction.

Therefore, not only when cutter device main body is relative to pedestal vertical shift, but also laterally incline in cutter device main body When oblique, assist shroud follows the angle of cutter device main body.The shape in the gap between fixed cover and pedestal is according to annular saw main body Angle in upper and lower directions and left and right directions and change, thus assist shroud can be moved in response to the variation of the shape in gap. In this way, assist shroud can reduce clast and be scattered from the gap between fixed cover and pedestal.

In the another aspect of present disclosure, Portable cutter includes：With the horse for making mechanical shoulder cut-off knife piece rotate The cutter device main body reached；And fixed to cutter device main body to cover a part for the outer radial periphery edge of mechanical shoulder cut-off knife piece Fixed cover.Cutter device main body is supported by pedestal so that can adjust the angle in upper and lower directions in the upside of pedestal to adjust Pitch circle disk cutting blade protrudes from the degree except pedestal in a downward direction.Pedestal also supports cutter device main body so that can To adjust the angle on left and right directions to adjust the angle of inclination of the Pivot axle of mechanical shoulder cut-off knife piece.Portable cutter Including assist shroud and assist shroud vertical shift mechanism.Assist shroud is removably couplable to fixed cover to cover mechanical shoulder cut-off knife piece Outer radial periphery edge, and between being covered near the pivoting centre in the upper and lower directions of cutter device main body between fixed cover and pedestal Gap.Assist shroud vertical shift mechanism makes assist shroud be moved relative to fixed cover according to the angle in the upper and lower directions of cutter device main body It is dynamic.

Therefore, when adjusting the angle of cutter device main body relative to pedestal in the up-down direction, assist shroud is relative to solid Fixed cover movement.When cutter device main body tilts in the lateral direction, since assist shroud is connected to fixed cover, assist shroud with Fixed cover on left and right directions to tilt.The shape in the gap between fixed cover and pedestal according to the angle of cutter device main body and Variation.Assist shroud is correspondingly moved corresponding to the shape in gap as a result,.In this way, assist shroud can reduce clast from admittedly It is scattered in gap between fixed cover and pedestal.

In the another aspect of present disclosure, Portable cutter includes：With the horse for making mechanical shoulder cut-off knife piece rotate The cutter device main body reached；And cutter device main body is connected to cover the cover body of the outer radial periphery edge of mechanical shoulder cut-off knife piece. Cutter device main body is supported by pedestal so that can be in the angle in the upper and lower directions that the upside of pedestal adjusts cutter device to adjust Mechanical shoulder cut-off knife piece protrudes from the degree except pedestal in a downward direction.Cover body with cutter device main body in the lateral direction It tilts.A part for cover body is moved relative to cutter device main body along the vertical direction according to the pivoting action up and down of annular saw main body It is dynamic, to reduce the gap between cover body and pedestal near the pivoting centre in the upper and lower directions of cutter device main body.

Therefore, a part for cover body according to disconnecting device main body in the up-down direction relative to the angle of pedestal, relative to Cutter device main body moves in the up-down direction.Since cover body is connected to cutter device main body, when cutter device main body exists When being tilted on left and right directions, according to the angle on the left and right directions of cutter device main body, cover body is tilted with cutter device main body. Therefore, it although the shape in the gap between fixed cover and pedestal may change according to the angle of cutter device main body, covers The position of a part for body and angular response change in the angle of cutter device main body.In this way it is possible to reduce cover body Gap between pedestal, so as to reliably reduce being scattered for clast.

Description of the drawings

Fig. 1 is the right view of Portable cutter；

Fig. 2 is the right view for the Portable cutter being partially removed；

Fig. 3 is the right view that annular saw main body is located at the portable circular saw being partially removed when upper side position；

Fig. 4 is the vertical view of portable circular saw；

Fig. 5 is the level cross-sectionn sectional view of portable circular saw；

Fig. 6 is the front view of portable circular saw；

Fig. 7 is the front view for the portable circular saw being partially removed；

Fig. 8 is the front view of portable circular saw when annular saw main body is located at lateral attitude；

Fig. 9 is the front view that annular saw main body is located at the portable circular saw being partially removed when lateral attitude；

Figure 10 is the rearview of portable circular saw；

Figure 11 is the upward view of portable circular saw；

Figure 12 is the stereogram of dust cover and angulation guide；

Figure 13 is the right view of dust cover and angulation guide；

Figure 14 is the front view of dust cover and angulation guide；

Figure 15 is the broken section vertical view of dust cover and angulation guide；

Figure 16 is the partial perspective view of the portable circular saw near ruler fixing device；

Figure 17 is the sectional view that XVII-XVII is splitted along the line of Fig. 4；

Figure 18 is the sectional view that XVIII-XVIII is splitted along the line of Fig. 4；

Figure 19 is the broken section right view of the component of ruler fixing device；

Figure 20 is the upward view of the component of ruler fixing device；

Figure 21 is the stereogram of hole component；

Figure 22 is the vertical view of hole component；

Figure 23 is the expanded view of the hole component on the line XXIII-XXIII of Figure 22；

Figure 24 is the expanded view of the hole component on the line XXIV-XXIV of Figure 22；

Figure 25 is the front view of pressing component；

Figure 26 is the right view of dustproof circular saw；

Figure 27 is the right view for the dustproof circular saw being partially removed；

Figure 28 is the right view that annular saw main body is located at the dustproof circular saw being partially removed when upper side position；

Figure 29 is the vertical view of dustproof circular saw；

Figure 30 is the level cross-sectionn sectional view of dustproof circular saw；

Figure 31 is the front view of dustproof circular saw；

Figure 32 is the front view for the dustproof circular saw being partially removed；

Figure 33 is the front view of dustproof circular saw when annular saw main body is located at lateral attitude；

Figure 34 is the front view that annular saw main body is located at the dustproof circular saw being partially removed when lateral attitude；

Figure 35 is the rearview of dustproof circular saw；

Figure 36 is the upward view of dustproof circular saw；

Figure 37 is the stereogram of dust cover and angulation guide；

Figure 38 is the right view of dust cover and angulation guide；

Figure 39 is the front view of dust cover and angulation guide；

Figure 40 is the broken section vertical view of dust cover and angulation guide；

Figure 41 is the stereogram exploded view of Blast mechanism；

Figure 42 is the decomposition front view of Blast mechanism；

Figure 43 is the decomposition right view of Blast mechanism；

Figure 44 is the exploded bottom view of Blast mechanism；

Figure 45 is the right view of dirt seal housing；

Figure 46 is the profilograph of dirt seal housing；And

Figure 47 is the vertical view of dirt seal housing.

Specific implementation mode

Referring now to attached drawing to being illustrated according to an illustrative embodiments of present disclosure.Fig. 1 and Fig. 4 are shown One as the portable processing unit (plant) or Portable cutter movably operated while being kept by user's one hand The dustproof circular saw (portable circular saw) 1 of example.The device is mainly used for cutting (multiple) side plate (siding board), (multiple) stone Cream plate etc., and also referred to as dust annular saw.Front-rear direction, left and right directions and upper and lower directions dust-proof circle as described below are used now Saw.As institute's directionality indicates in the explanation in Fig. 1, front side corresponds to dust-proof when the cutting of dustproof circular saw 1 or workpieces processing W The direction that annular saw 1 advances.The location determination left and right directions of user based on the rear side positioned at dustproof circular saw 1, wherein rear side side It is shown in the explanation to also directionality.

As shown in Figure 1, dustproof circular saw 1 includes annular saw main body (also referred to as machine tool body or cutter device main body) 20 Hes The pedestal 10 of annular saw main body 20 is supported in a manner of adjustable angle.As shown in Figures 4 and 5, annular saw main body 20 includes for making circle The electro-motor 30 of the rotation of disk cutting blade (saw blade) 22 and the battery 2 for supplying power to electro-motor 30.

As shown in Figure 4 and Figure 5, electro-motor 30 is previously stored the brushless motor in motor shell 4.Electro-motor 30 includes It the stator 30a that is fixed on the inner peripheral surface of motor shell 4 and rotatably supports and the rotor in the inner circumferential side of stator 30a is set 30b.The sensor board 34 of Magnetic Sensor with the rotation position for detecting rotor 30b is mounted on the right side of stator 30a (downside of Fig. 5).Motor drive shaft 30c is inserted into rotor 30b, to which rotor 30b is fixed to motor drive shaft 30c.A left side of motor drive shaft 30c End is rotatably supported by bearing 33 with the center longitudinal axis rotation around motor shell 4 in the lateral direction.The right end of motor drive shaft 30c It is rotatably supported by bearing 32 to be rotated around the center longitudinal axis, the center longitudinal axis extends right to gear from motor shell Case 5.

As shown in figure 5, gear-box 5 is arranged on the right side of motor shell 4.What the rotation for reducing electro-motor 30 exported Reduction gear 40 is arranged in gear-box 5.Reduction gear 40 includes the small tooth of the one end for being connected to motor drive shaft 30c Take turns 40a, the intermediate gear 40b engaged with pinion gear 40a and the main shaft 41 engaged with intermediate gear 40b.Main shaft 41 is located at horse It is rotatably supported up to the lower section of axis 30c, and by gear-box 5 to be rotated around the axis for being parallel to motor drive shaft 30c.Main shaft 41 Distal end protrudes to the right from gear-box 5, and cutting blade 22 is connected to the distal end.

As shown in Figure 1 and Figure 5, cutting blade 22 is fixed to the distal end of main shaft 41 by connector 42.Connector 42 includes Inward flange 42a for supporting cutting blade 22 from the left side and outward flange 42b for supporting cutting blade 22 from right side.Cutting The outer radial periphery edge of blade 22 can be covered by cover body (9,21 and 23).Cover body includes：Diameter for covering cutting blade 22 is outside The fixed cover 21 of substantially one half part of the upside of periphery；The removable cover 23 that can be moved on the rear portion of fixed cover 21；And The assist shroud 9 that can be moved on the front of fixed cover 21.Disposal box 28 is connected to the top of fixed cover 21, to receive clast.

As shown in figure 5, fixed cover 21 is arranged on the right side of gear-box 5 and extends from gear-box 5.As illustrated in fig. 1 and 2, Gu Surely cover 21 includes：Positioned at the left side of cutting blade 22 and fixed to annular saw main body 20 left-hand face 21a；Cover cutting blade 22 Outer radial periphery edge upper area right lateral surface right lateral surface 21b；And connect left-hand face 21a and right lateral surface The peripheral wall 21c of the upper end of 21b.Peripheral wall 21c is formed as arc-shaped, and covers the upper zone of the outer radial periphery edge of cutting blade 22 Domain.The delivery pipe 21d upwardly extended is formed in the front of fixed cover 21 to be connected to the opening 28b of disposal box 28.

As illustrated in fig. 1 and 2, disposal box 28 includes the box main body 28a extended along the upside outer peripheral edge of fixed cover 21.Opening 28b is formed in the front of box main body 28a, and the delivery pipe 21d of fixed cover 21 is connected to the front of box main body 28a.Cutting blade 22 Direction shown in arrow 28h shown on right lateral surface along disposal box 28 is rotated to cut workpiece W.It is generated when from workpiece W When clast, clast is blown out in the front side of cutting blade 22.The clast of blowout is directed into box main body 28a and product from fixed cover 21 Gather in box main body 28a.

As illustrated in fig. 1 and 2, disposal box 28 has driving lever 28g in its right lateral surface.Disposal box 28 by using with driving lever External screw thread integrally formed 28g is removably attached to annular saw main body 20.Tap 28c is formed in the rear portion of box main body 28a.With Box main body 28 is pivotally attached to by pin 28e in the cover 28d of opening and closing tap 28c.Box main body 28a is accumulated in when that must be discharged When interior clast, box main body 28a is removed from annular saw main body 20 first.Next, after the removing, covering pivots of the 28d by pin 28e Turn to open so that tap 28c is opened, to which clast can be discharged to outside from the inside of box main body 28a.

As shown in Figure 1, through-hole is formed in by the rear portion of the lid 28f cover 28d being closed.Can from cover 28d remove lid 28f it Vacuum is attached to the through-holes of cover 28d afterwards.In this way, the clast in disposal box 28 can be sucked into vacuum via pipe Device.

As illustrated in fig. 1 and 2, the lower rear side that cover 23 is located at fixed cover 21 is moved, and the diameter for covering cutting blade 22 is outside The lower rear region of periphery.Removable cover 23 has circular shape and is pivoted around the radial center of cutting blade 22, wherein removable Cover 23 relative at the center of cutting blade 22 pivotal point and cutting blade 22 it is coaxial.Removable cover 23 is stretched spring In the direction of the lower area of covering cutting blade 22, that is, towards the biasing of front side.When cutting workpiece W, cover 23 is moved Front end (anterior end) abutted with workpiece W so that removable cover 23 is pushed backwards certain circumferential lengths, and removable The length is moved clockwise upwards relative to workpiece W in the rear end of dynamic cover 23.

As shown in Figures 2 and 3, assist shroud 9 is located at the lower front side of fixed cover 21.Assist shroud 9 be located at cutting blade 22 it is lower before Portion's outer radial periphery, and at the lower front tangent line of cutting blade 22 between the front end and pedestal 10 of the fixed cover of covering 21 between Gap S.Gap S changes according to annular saw main body 20 relative to the angle of pedestal 10.In response to this variation, assist shroud 9 is according to circle The angle of saw body 20 is moved relative to fixed cover 21 or pedestal 10.Therefore, assist shroud 9 can be effectively prevented clast from gap S is fallen out forward.Assist shroud 9 includes being connected to the dust cover 24 of annular saw main body 20 or fixed cover 21 and connecting dust cover 24 It is connected to the angulation guide 14 of pedestal 10.

As shown in Figure 12 to Figure 15, dust cover 24 includes vertical elongated the first side wall 24a, vertical with the first side wall 24a The antetheca of the preceding vertical edge of opposite eccentric second sidewall 24c and lateral connection the first side wall 24a and second sidewall 24c 24b.In the inside of dust cover 24, the first side wall 24a includes vertical slot hole 24d and prolongs in horizontal direction far from second sidewall 24c The pin 24e stretched.Vertical slot hole 24d is about linear and limits cam face.As shown in Figures 2 and 3, extend from fixed cover 21 One or more pins 19 can be inserted into vertical slot hole 24d.Retainer with the big diameter of the width than vertical slot hole 24d connects (right side) is held before being connected to pin 19.Dust cover 24 is removably couplable to fixed cover 21 by pin (multiple) 19 in the up-down direction. As shown in figure 13, pin 24e is arranged in the lower part of the first side wall 24a.Pin 24e is connected to the angulation guide 14 that will be explained below Front and back slot hole 14f.

As shown in Figure 12,13 and 15, the vertical length of second sidewall 24c is shorter than the vertical length of the first side wall 24a.The The upper end of two side wall 24c is located at the lower section of the upper end of the first side wall 24a, on the contrary, the lower end of second sidewall 24c is located at the first side The top of the lower end of wall 24a.The front and rear width of second sidewall 24c is narrower than the front and rear width of the first side wall 24a, second sidewall 24c Posterior border position in the first side wall 24a back edge front.The rear end of second sidewall 24c has circular shape, and along such as The outer peripheral edge of certain part of cutting blade 22 shown in Fig. 2 extends.

As shown in figures 12 and 15, the leading edge of the leading edge and second sidewall 24c of antetheca 24b connection the first side walls 24a, from And towards and partly cover/cover the outer peripheral edge of cutting blade 22 as shown in Figure 5.The outer peripheral edge position of cutting blade 22 In space (slot) 24f or near it, wherein space 24f includes being surrounded by the first side wall 24a, second sidewall 24c and antetheca 24b Inner space.Therefore, the clast generated by cutting blade 22 in cutting process is blown to space 24f and along space 24f.

As shown in Figure 12 to Figure 15, angulation guide 14 includes antetheca 14a, extends back from antetheca 14a and perpendicular to preceding The the first bracket 14b and the second bracket 14g, wherein antetheca 14a of wall 14a from left to right extends, and the second bracket 14g also extends To the left side of the first bracket 14b and it is parallel to the first bracket 14b, and orthogonal with antetheca 14a.In one end (bottom right of antetheca 14a End) hole 14c is formed, and form slot hole 14d in the other end of antetheca 14a (left end).Hole 14c has circular shape, shown in Fig. 6 Lateral inclination support shaft 13 be inserted through hole 14c.Therefore, angulation guide 14 can be around lateral inclination support shaft 13 relative to base Seat 10 tilts.

As shown in figure 14, slot hole 14d along antetheca 14a left hand edge arc extend.The knob bolts as shown in Fig. 6 16 axis is inserted through slot hole 14d.The axis of knob bolts 16 can also be inserted through uprightly to be extended in the front end of pedestal 10 Front support portion 11 longitudinal hole 11a.Slot hole 11a may be alternatively formed to the circular shape similar to slot hole 14d.16 edge of knob bolts When tightening direction rotates, angulation guide 14 is liftedly locked to front support portion 11.When knob bolts 16 are along loosening direction When rotation, angulation guide 14 can be pivoted relative to front support portion 11 around lateral inclination support shaft 13, thus be unlocked.Such as Shown in Fig. 6 to 9, annular saw main body 20 can with angulation guide 14 in the lateral direction relative to pedestal 10 tilt, so as to Defined angle of inclination relative to pedestal 10 is screwed the holding of screw 16.

As shown in figures 12 and 14, angulation guide 14 includes indicator 14i on the opposite lateral side of hole 14c.Refer to Show that device 14i projects outwardly beyond the edge of antetheca 14a from left side.It can be from preceding view to indicator 14i extends outwardly super Cross the outer edge in front support portion 11 shown in fig. 6.Angle cuing scale 11b along front support part 11 outer edge from left to right Arc extends.Angulation guide 14 can pass through reading pointer 14i institutes relative to the angle of inclination of pedestal 10 in the lateral direction Ruler 11b on the position of instruction is identified.As described below, annular saw main body 20 is connected to angulation guide 14.Therefore, when using ruler When the position of 11b reading pointers 14i, it may be appreciated that the angle of inclination of annular saw main body 20 in the lateral direction.

As shown in Figure 4 and Figure 6, lateral inclination support shaft 13 is located at the right lower quadrant in front support portion 11 and prolongs along the longitudinal direction It stretches.Lateral inclination support shaft 13 passes through front support portion 11 to be inserted into from front to back, is inserted into and is limited in angulation guide 14 Hole 14c.Annular saw main body 20 is connected to angulation guide 14.It therefore, as seen in figs. 6 and 8, can be by the lateral direction around cross The angle of inclination of annular saw main body 20 is adjusted to the angulation guide 14 that support shaft 13 rotates is tilted.

As shown in Figure 10, rear support portion 12 is arranged in the Background Region of pedestal 10.Rear support portion 12 is straight on pedestal 10 It erects and sets.Tiltable plate 18 is connected to rear support portion 12 via lateral inclination support shaft 17.Tiltable plate 18 includes being connected to circle Saw body 20 and the depth guide 71 extended in upward direction.Lateral inclination support shaft 17 position setting with shown in Fig. 6 13 identical antero posterior axis of lateral inclination support shaft on.Therefore, the angle of annular saw main body 20 is in the lateral direction around lateral inclination Support shaft 13 and 17 is carried out at the same time adjusting.In this way, as shown in figure 8, cutting blade 22 can adjusted relative to workpiece W Cutting angle while carry out so-called beveling.

As shown in Figure 12 to Figure 15, the first bracket 14b vertically extends back from the bottom righthand side of antetheca 14a, and the second bracket 14g is also parallel to the first bracket 14b from the central area of antetheca 14a and vertically extends back.Hole 14e is formed in the first bracket 14 Upper front part, and hole 14h is formed in the identical corresponding front and back position of the second bracket 14g.Therefore, hole 14e and 14h such as Figure 15 It is shown to be arranged with coaxial manner, axis 15 is thus pivotally supported vertically is inserted through hole 14e and 14h.As shown in Figure 4 and Figure 5, circle The front of saw body 20 is pivotally attached to pivotally support axis 15 vertically.Therefore, as shown in Figures 2 and 3, annular saw main body 20 relative to Pedestal 10 is pivoted around the vertical axis 15 that pivotally supports in the up-down direction.In this way it is possible to adjust cutting blade 22 from pedestal 10 downward projection of degree.

As shown in Figure 1, when cutting blade 22 cuts workpiece W, pedestal 10 slides on the workpiecew.Cutting blade 22 is from base Seat 10 extends downwardly, and can determine the depth of cut in workpiece W according to the degree that cutting blade 22 extends.Such as Figure 10 institutes Show, depth of cut regulating mechanism 70 is arranged at the rear portion of pedestal 10, to adjust depth of cut.Depth of cut regulating mechanism 70 With the depth guide 71 being arranged on tiltable plate 18, tiltable plate 18 is rotatably connected to pedestal 10.

As shown in Fig. 4 and Figure 10, depth guide 71 is formed in the end of tiltable plate 18, and upward from tiltable plate 18 And extend to front side arc upward.The guiding slot 71a with circular shape is formed in depth guide 71.Fixed spiral shell Nail 72 is inserted into guiding slot 71a so that (left side) end and the left surface of fixed cover 72 are threadedly engaged before fixing screws 72.Make The head of fixing screws 72 is connected to for the fixed link 73 of operation portion.Fixing screws 72 by operating fixed link 73 from depth upwards It spends guiding piece 71 to unclamp, therefore annular saw main body 20 is moved up by fixing screws 72 relative to depth guide 71 in above-below direction It is dynamic.In this way it is possible to adjust the degree (depth of cut) outstanding below pedestal 10 of cutting blade 22.

As shown in Fig. 4 and Figure 10, depth of cut measuring scale is shown on the outer arcuate circumferential surface of depth guide 71.By making Know the degree outstanding below pedestal 10 of cutting blade 22 with ruler.At the position that overhang corresponds to predetermined amount, Gu Fixed pole 73 is by downward operation, to which annular saw main body 20 is fixed to depth guide 71 in specific position by fixing screws 72. In this way, by the effect of fixed link 73, the depth of cut in workpiece W with fixed cutting blade 22 can be adjusted.

As shown in Figures 2 and 3, assist shroud vertical shift mechanism 25 make assist shroud 9 relative to annular saw main body 20 in above-below direction Upper movement.For example, if annular saw main body 20 is pivoted to top position shown in Fig. 3 from lower position shown in Fig. 2, including it is auxiliary Help the dust cover 24 of a part for cover 9 that can be moved down relative to annular saw main body 20.Assist shroud vertical shift mechanism is (vertical Coupling structure) 25 there is pin 19 and vertical slot hole for connection annular saw main body 20 and dust cover 24 in the up-down direction 24d.Pin 19 is protruded from the front of annular saw main body 20.For example, pin 19 is protruded from the front of fixed cover 21 along direction from right to left. Vertical slot hole 24d is formed in the dust cover 24 for being inserted into one or two pins 19 being vertically arranged.Vertical slot hole 24d define with The cam face that multiple pins 19 abut, and multiple pins 19 collectively or individually constitute the cam that is moved along cam face from Moving part.

As shown in Figures 2 and 3, assist shroud vertical shift mechanism 25 has the pin for coupling dust cover 24 and pedestal 10 24e and front and back slot hole 14f.As shown in figure 13, front and back slot hole 14f is formed in the first bracket 14b's of angulation guide 14 In lower rear region.Front and back slot hole 14f is elongated and substantially linear in the longitudinal direction.Front and back slot hole 14f relative to Horizontal plane is posteriorly upwardly extended from front at an oblique angle.The pin 24e being formed on dust cover 24 is movably inserted into In front and back slot hole 14f.Therefore, dust cover 24 is removably couplable to pedestal 10 via angulation guide 14.

As shown in Fig. 2, when annular saw main body 20 is located at lower position, the front area in front and back slot hole 14f is arranged in pin 24e In.Therefore, dust cover 24 is arranged near the front of angulation guide 14.The lower area in vertical slot hole 24d is arranged in pin 19 In.Therefore, since the position, dust cover 24 is allowed to be disposed relative to annular saw towards the vertical gap at the top of slot hole 24d The relatively high position of main body 20.Therefore, dust cover 24 covers pedestal 10 while near the front of cutting blade 22 And fix the gap between the front end of cover 21.

As shown in figure 3, when annular saw main body 20 is located at upper position, pin 24e is located at the Background Region of front and back slot hole 14f. Therefore, dust cover 24 is located near the rear portion of angulation guide 14.Pin 19 is located at the upper area of vertical slot hole 24d.Therefore, Since the position, dust cover 24 is allowed to be disposed relative to 20 phase of annular saw main body towards the vertical gap of the bottom of slot hole 24d To lower position.The gap S limited between the front end and pedestal 10 of fixed cover 21 can be by making annular saw main body 20 from Fig. 2 Shown in lower position be moved upwards up to upper position shown in Fig. 3 to increase.Correspondingly, in order to cover increased gap, when When fixed cover 21 upwardly and forwardly moves, dust cover 24 is downwardly and rearwardly moved relative to fixed cover 21.

By annular saw main body 20 from lower position shown in Fig. 2 to by the movement of upper position shown in Fig. 3 from Fig. 2 to figure In 3 transition, position at the front end of cutting blade corresponding with the intersection point of cutting blade 22 and pedestal 10 22 is along backward It moves in direction.Correspondingly, the lower end of dust cover 24 is moved further back relative to fixed cover 21.Accordingly, it is shown that：According to The movement of main body 20 and fixed cover 21, dust cover 24 can in response to the pivoting action of annular saw main body 20 in the up-down direction and It moves in the longitudinal direction so that the gap S between the front end and pedestal 10 of fixed cover 21 is remained by dust cover 24 to the greatest extent may be used The narrow structure of energy.

As shown in Fig. 6 to 9, when annular saw main body 20 tilts in the lateral direction, angulation guide 14 is with annular saw main body 20 tilt around lateral inclination support shaft 13.Dust cover 24 can also with the part as annular saw main body 20 fixed cover 21 around Lateral inclination support shaft 13 tilts.When annular saw main body 20 tilts in the lateral direction relative to pedestal 10, before fixed cover 21 The gap S limited between end and pedestal 10 can also be moved in the lateral direction.As described above, when annular saw main body 20 tilts, Correspondingly, dust cover 24 also with the comparable angle in the inclination angle of annular saw main body 20 in the lateral direction updip in left and right directions Tiltedly.In this way, the gap S between the front end and pedestal 10 of fixed cover 21 can be covered advantageously by dust cover 24 always. Particularly, dust cover 24 moves so that the point-to-point gap dust cover 24 between the front end and pedestal 10 of dust cover 24 can be always Equal to or less than 1mm, preferably equal to or smaller than 0.5mm.

As shown in Fig. 6 to 9, angle of the assist shroud 9 according to annular saw main body 20 in the lateral direction uses 26 phase of mutual interlocking gear Pedestal 10 is tilted in the lateral direction.Mutual interlocking gear 26 includes lateral inclination support shaft 13 and angulation guide 14, wherein Angulation guide 14 can be rotated relative to pedestal 10 around axis 13 in the lateral direction.In addition, as shown in Fig. 2, mutual interlocking gear 26 (multiple) pin 24e including front and back slot hole 14f and for being movably coupled to angulation guide 14 and dust cover 24, two of which Component can be moved relative to each other.In addition, mutual interlocking gear 26 further includes vertical slot hole 24d and is used for relative to annular saw main body 20 It is movably coupled to (multiple) pin 19 of dust cover 24, two of which component can be moved relative to each other.

As shown in Fig. 4 and Figure 10, annular saw main body 20 has the battery installation section 3 for installing battery 2.Battery installation section 3 Left side positioned at the rear portion of annular saw main body 20.It is similar to motor shell 4, battery installation section 3 from the left-hand face of fixed cover 21 to Left direction extends.Battery installation section 3 is formed to have the shape of general planar and includes guide rail on its lower surface 3.Guide rail Such as extend in the lateral direction, and battery 2 is removably attached to the lower surface of battery installation section 3 by guide rail.Institute's profit Battery 2 is the battery for electric tool, and can similarly be installed to other electric tools such as screwdriver.Electricity Pond 2 can be the lithium ion battery of such as 18V outputs, and can be charged by the charger being prepared separately.Therefore, this permits Battery 2 is repeatedly used as to the power supply of dustproof circular saw 1 perhaps.Battery 2 is electrically connected to controller 61 shown in fig. 5, and via control Device 61 is powered to electro-motor 30.

As shown in Figure 4 and Figure 5, controller 61 can be fully contained in controller housing 7, and controller housing 7 is arranged Between battery installation section 3 and motor shell 4.Such as sensor board 34, the electro-motor 30 of the position for detecting rotor 30b And the various electric members for the switch 53 (referring to Fig. 1) being arranged on handle 6 may be electrically connected to controller 61.Controller 61 Including control circuit, location information of the control circuit based on the rotor 30b detected by sensor board 34 transmits (multiple) controls Signal.In addition, controller 61 may include driving circuit and automatic citrcuit bearker circuit, the driving circuit include for based on from (multiple) control signals that control circuit receives change the field-effect transistor (FET) of the electric current of electro-motor 30, auto-cutout Device circuit is used for power supply of 2 situation of the battery cut-out to electro-motor 30 in response to detecting, and prevents over-discharge state or mistake Current status.

As shown in figs. 1 and 4, handle 6 is angled, and includes erection part 6a, Yi Jicong uprightly extended from motor shell 4 The front upper of erection part 6a is towards 3 sweptback handle portion 6b of battery installation section.Touch switch 53 is arranged in handle portion On the lower surface on the top of 6b.Switch 53 is by support shaft supports on handle portion 6b and for example, by the inclined of compressed spring Component biased downward is set, which can in the vertical direction be pulled by user in a manner of tiltably operating.Pass through user The finger tip of hand catch handle portion 6b, user operates the bias force for pulling up confrontation bias component of switch 53.Then, Switch 53 makes its action by being pulled, and passes the signal along to controller 61 (referring to Fig. 5) so that controller 61 is by electric power from electricity Pond 2 is supplied to electro-motor 30.As a result, electro-motor 30 starts driving to make the side shown in the arrow 28h of cutting blade 22 To rotation.

As shown in figures 1 to 6, locking press button 57 is arranged on handle 6.Locking press button 57 is located at the upper front side of switch 53, And handle 6 is passed through in left-right direction.Locking press button 57 is set as relative to handle 6 can in the up-down direction switching.It is switching 53 pull up while make its operation, by the way that locking press button 57 is switched to down position so that electro-motor 30 is locked In driving condition.Therefore, electro-motor 30 can be driven in the case of discontinuous Drawing switch 53.In this way, it grasps Author can be easy to carry out prolonged work.If lock-out state is released from, switch 53 can be pulled up again Make its operation.In this case, if lock-out state is released from, locking press button 57 is switched up and returns to its raw bits It sets.

As shown in figure 5, cooling fan 36 may be mounted on the motor drive shaft 30c of electro-motor 30.Cooling fan 36 can be with Between rotor 30b and bearing 32, and as motor drive shaft 30c rotates.Pass through the cooling fan rotated with motor drive shaft 30c 36, the venthole 4a that extraneous air can be passed through in the left-hand face of motor shell 4 is introduced into motor shell 4.Draw The air cooling electro-motor 30 entered then passes through the venthole 4b being formed on the rear portion of motor shell 4 and is flowed into controller In shell 7.Air can be to having the cooling of the controller 61 of the pyrotoxin of such as FET (field-effect transistor) or microcomputer Afterwards, it is discharged from the exhaust outlet 7a at right surface for being formed in controller housing 7.

As shown in figure 5, pipe 65 may be coupled to motor shell 4, the pipe 65 can be used for the air in motor shell 4 It is guided towards front direction.Pipe 65 includes the interconnecting piece for the connectivity port 4c being connected in the right front portion point for being formed in motor shell 4 65a.From connectivity port 4c, pipeline 65 extends to the right along the front surface of gear-box 5, then along the side surface of fixed cover 21 Extend forward.Exhaust outlet 65b is formed in the front end (anterior end) of pipe 65 and determines towards the mark line guiding piece 10c of pedestal 10 To.Mark line guiding piece 10c is arranged in the front end of pedestal 10, and by lacking before and after on the left and right sides of mark line guiding piece 10c Oral area limits.Cutting blade 22, while mark line guiding piece can be accurately moved by making pedestal 10 be moved along front direction 10c is located on the mark line that can be marked on the workpiecew.Clast near mark line guiding piece 10c etc. is accumulated in by from pipe 65 The air of discharge is blown out.This improves the visualitys of mark line guiding piece 10c, add so as to quickly and accurately execute Work industry.

As shown in figure 5, locking level 44 is connected to the front of gear-box 5, that can pull in the vertical direction.Locking level 44 connects It is connected to the locking member for locking main shaft 41, so as to make main shaft 41 non-rotatably be locked by operating locking level 44 It is fixed.In this way, when main shaft 41 does not rotate, cutting blade 22 may be connected to main shaft 41 or be removed from main shaft 41.

As shown in figures 1 and 11, pedestal 10 is shaped generally as flat shape.Annular saw main body 20 is supported in the upper of pedestal 10 Side, enabling the vertical and lateral angles of annular saw main body 20 are adjusted relative to pedestal 10.As shown in figure 11, the shape in pedestal 10 At substantially rectangular window 10a, the window 10a for being inserted into cutting blade 22.Parallel rule 80 is connected to the front of pedestal 10, The position as a whole of round saw body 20 and pedestal 10 is adjusted in the lateral direction along ruler 80.

As shown in Figure 4 and Figure 6, parallel rule 80 includes being connected to the connecting rod 80b of pedestal 10 and being arranged connecting rod 80b's The ruler main body 80a of end.Ruler main body 80a is located at the right side of pedestal 10.As workpieces processing W, pedestal 10 is placed on workpiece W On, and ruler main body 80a abuts the side of workpiece W.As shown in Figure 1, dustproof circular saw 1 abuts rectangular piece W in ruler main body 80a Longitudinal side while, with 10 forward direction of pedestal move.In this way, dustproof circular saw 1 can be along the institute of workpiece W It states side to move in parallel, so as to preset width cutting workpiece W.

As shown in figs. 4 and 6, connecting rod 80b is laterally-elongated plate and extends beyond the transverse width of pedestal 10.Such as Fig. 6 It is shown, extend in the connecting rod 80b of the horizontal ends of its rightmost and be bent straight down, then from lower vertical point further towards It pedestal 10 but extends back along left horizontal direction in the lower section of pedestal 10.Ruler main body 80a is arranged in the position of the connecting rod 80b of bending The terminal in 10 lower section of pedestal.Ruler main body 80a is elongated in the longitudinal direction, and in the lower section of pedestal 10 with left and right directions Setting direction.Therefore, ruler main body 80a can abut the longitudinal side of rectangular piece W.

As shown in Fig. 4 and Figure 16, the ruler retention groove 10e of front and back notch up and down is set in pedestal 10, to movably Accommodate connecting rod 80b.The left and right ends of ruler retention groove 10e are open in the rightmost side of pedestal 10 and the leftmost side.80a is on a left side for ruler main body Position in right direction can be adjusted by making connecting rod 80b be moved in the lateral direction along ruler retention groove 10e.Connection Bar 80b is fixed to pedestal 10 by ruler fixing device 81.

As shown in Figure 17 and Figure 18, connecting rod 80b is pushed down into slot 10e by ruler fixing device 81.Ruler retention groove 10e has tapered portion 10k in its front-end and back-end.The front-end and back-end of connecting rod 80b are pushed against tapered portion 10k.Therefore, Prevent connecting rod 80b from shaking (rattling) in the longitudinal direction by the tapered portion 10k of ruler retention groove 10e.Connecting rod 80b Lower surface can be pushed against its front-end and back-end of ruler retention groove 10e have tapered portion.Alternatively, it is possible to Any one of connecting rod 80b and ruler retention groove 10e are upper to form a tapered portion or multiple tapered portion.

As shown in Figure 16 and Figure 17, ruler fixing device 81 has the bridging component 10f being arranged on pedestal 10, is inserted into bridge joint The shaft member 85 in hole component 86 and insertion hole portions part 86 in the base aperture 10g of component 10f.As shown in figure 4, bridging component 10f is arranged close to the edge (for example, left hand edge) of pedestal 10, and extends on ruler retention groove 10e in the longitudinal direction.Such as Figure 11 Shown in Figure 17, rectangular opening 10d is formed rather than ruler retention groove 10e in the lower part of bridging component 10f.Rectangular opening 10d have with The corresponding rectangular shape of rectangular shape of bridging component 10f.

As shown in Figure 19 and Figure 21, hole component 86 has the tube being inserted into the base aperture 10g of bridging component 10f The flange 86b of 86a and the lower end for being formed in tube 86a.Slot 86g is formed in the top outer radial periphery edge of tube 86a.Pipe Shape portion 86a is inserted into from the lower section of bridging component 10f in base aperture 10g.Retainer 84 is slipped to be assemblied on bridging component 10f In the slot 86g of side.In this way, hole component 86 is connected to bridging component 10f.It can be such as E shapes ring to slip retainer 84 Or C-shaped ring.Hole component 86 has tapered upper end 86d.Tapered upper end 86d is circular rings, and diameter and circumference are from the top to the bottom It is gradually reduced.Therefore, by this pyramidal structure, prevent accumulation of debris in the upper surface of hole component 86, therefore clast will not be from The hole 86c of upper surface access aperture component 86.

As shown in Figure 19 and Figure 21, the diameter of base aperture 10g of the diameter more than bridging component 10f of flange 86b, and The upper surface of flange 86b is in bottom surface of its top towards bridging component 10f.Inclined surface 86e and step 86f are formed in flange On the upper surface of 86b.As shown in FIG. 21 to 24, inclined surface 86e extends in a circumferential direction, and is gradually increased upwards with thickness Big mode protrudes counterclockwise.Therefore, the inclined surface 86e being formed on the upper surface of flange 86b limits lateral cam.It can be Multiple (for example, four) inclined surface 86e are formed on flange 86b so that step 86f is formed between inclined surface 86e.In phase Same circumferential position, which is in the wall that radially inner and outer side upwardly extends, can be formed by step 86f to towards counterclockwise.

As shown in figure 20, inclined surface 10h and step 10i can be formed in the downside of bridging component 10f.Inclined surface 10h and Step 10i has the shape with the shape complementation of the inclined surface 86e and step 86f of hole component 86 shown in Figure 21.Inclined surface 10h is circumferentially extending and recessed counterclockwise in such a way that thickness gradually reduces upwards.Therefore, it is formed in bridging component Inclined surface 10h on the downside of 10f limits lateral cam.Multiple (examples can be formed at the lower surface of bridging component 10f Such as, four) inclined surface 10h, to form step 10i between inclined surface 10h.It is inside in diameter in identical circumferential position The wall that foreign side upwardly extends can be formed by step 10i to towards counterclockwise.

Referring to Fig.1 9 to 21, when shaft member 85 is moved down by being rotated clockwise relative to hole component 86, Power fights bridging component 10f and is applied to hole component 86 and shaft member 85 along clockwise direction.At this point, 86e contacts in inclined surface are inclined Inclined-plane 10h, to push down on hole component 86 relative to bridging component 10f.Specifically, not instead of whole surface, each The only a part of inclined surface 86e and inclined surface 10h contact with each other respectively.Retainer 84 is slipped to be supported by the pushing of hole component 86 By the upper surface of bridging component 10f.Axial direction this prevent hole component 86 relative to bridging component 10f is shaken.Further, since working as Inclined surface 86e abuts front and back friction when the 10h of inclined surface and increases securely, therefore is also possible to prevent hole component 86 relative to bridge part Part 10f shakes in a rotational direction.In this way it is possible to prevent hole component 86 from occurring for example relative to bridging component 10f It is shaken caused by vibrating.

Referring to figures 19 through 21, when shaft member 85 is moved up by being rotated counterclockwise relative to hole component 86, power edge Counterclockwise confrontation bridging component 10f is applied to hole component 86 and shaft member 85.At this point, the step 86f contacts of hole component 86 The step 10i of bridging component 10f.It is therefore prevented that hole component 86 further rotates in the counterclockwise direction relative to bridging component 10f More than specified amount.If shaft member 85 further rotates in the counterclockwise direction in this configuration, shaft member 85 is relative to hole portion Part 86 and bridging component 10f are rotated in the counterclockwise direction so that shaft member 85 moves up.

With reference to figure 19 and 20, operating member 88 is fixed to the upper end of shaft member 85.Operating member 88 is radial from shaft member 85 Outwardly and upwardly extend and is grasped by user.Shaft member 85 includes major diameter portion 85a and small below major diameter portion 85a Diameter portion 85b.External screw thread is formed on the outer periphery surface of major diameter portion 85a.Major diameter portion 85a is being inserted into spring 83 While be screwed in entrance bore portion part 86.Spring 83 is, for example, helical spring, has the upper end for abutting operating member 88 and by bridge Relay part 10f is supported and is abutted the lower end of bridging component 10f.When in 85 threaded through bores component 86 of shaft member, major diameter portion 85a It is threadedly engaged with the internal thread being formed in the hole 86c of hole component 86, and screw-thread fit construction is provided to spring 83 Upwardly bias the resistance of power.

Referring to Fig.1 9 and 20, the minor diameter 85b of shaft member 85 is extended downwardly from hole component 86.Minor diameter 85b is inserted into In the hole 87c of pressing component 87.Retainer 89 is slipped to be fitted in the slot 85c for the lower part for being formed in minor diameter 85b.Slippage stops Dynamic portion 89 can be such as E shapes ring or C-shaped ring.The diameter of retainer 89 and major diameter portion 85a are slipped more than minor diameter 85b's Diameter.Therefore, pressing component 87 can be vertical between major diameter portion 85a and slippage retainer 89 and be rotatably connected to small Diameter portion 85b.

As shown in Figure 19,20 and 25, pressing component 87 has rectangular portion 87a and from the left side on the lower surface of rectangular portion 87a The leg 87b that end and right end extend downwardly.Rectangular portion 87a is inserted between two column 10j of bridging component 10f.Two column 10j exist It is faced relative to one another uprightly and towards the side surface of rectangular portion 87a on front-rear direction.Therefore, the confrontation of pressing component 87 bridge joint The rotation of component 10f is restricted.

As shown in Figure 17 and Figure 18, using operating member 88, shaft member 85 passes through longitudinal vertical axis around shaft member 85 It rotates clockwise and is moved down relative to hole component 86 and bridging component 10f.Pressing component 87 and shaft member 85 are downwardly together It is mobile, connecting rod 80b is pressed against ruler retention groove 10e so as to the leg 87b of pressing component 87.It therefore, can be relative to pedestal 10 The position of keeping parallelism ruler 80.Shaft member 85 can by shaft member 85 around the rotation counterclockwise of its longitudinally perpendicular axis phase Hole component 86 and bridge component 10f are moved up.As pressing component 87 and shaft member 85 move upwardly together, pressing component Far from connecting rod 80b movements.In this way it is possible to fixedly adjust relative to pedestal 10 parallel rule 80 in the lateral direction Position.

As shown in figure 19, similarly with the other parts of pedestal 10, the bridging component 10f of the part as pedestal 10 can With made of aluminum.On the contrary, hole component 86 and shaft member 85 are by with than the 10 higher wearability of pedestal including bridging component 10f It is made with the material of rigidity.For example, hole component 86 and shaft member 85 can be by such as steel, iron material, titanium material or titanium alloys Metal material be made.Hole component 86 and shaft member 85 preferably by identical (multiple) materials or can have similar wearability It is made with (multiple) material of rigidity.More specifically, hole component 86 can be with the bore region for including hole 86c, wherein the hole Region can be by being made with the material than 10 higher wearability of pedestal and rigidity.For example, hole wall surface can be hard by plating The surface treatments such as chromium or hardening.Alternatively, the inside of apertured members 86 and hole wall surface can be made of metal material etc..

Portable circular saw (portable processing unit (plant)) 1 as described above has pedestal 10 as shown in FIG. 6,80 and of parallel rule Ruler fixing device 81.Pedestal 10 supports annular saw main body (processing unit (plant) main body) 20, and is placed on the workpiecew.Such as the institutes of Fig. 6 and 17 Show, parallel rule 80 includes being slidably mounted in connecting rod 80b in the ruler retention groove 10e of pedestal 10 and from connecting rod 80b's Lateral edges and the ruler main body 80a that pedestal 10 below extends of the end along pedestal 10, and the end of the connecting rod 80b is located at base The outside of seat 10.When annular saw main body 20 is moved along the side of workpiece W, across the parallel rule 80 and workpiece W of ruler main body 80a Longitudinal side surface abut.Ruler fixing device 81 includes the hole 86c being formed in pedestal 10, is threaded into the axis in the 86c of hole Component 85 and be connected to shaft member 85 end pressing component 87, which helps connecting rod 80b being pressed against Ruler retention groove 10e.Bore region including hole 86c by the higher wearability of wearability with other regions than pedestal 10 material Material is made.

Therefore, as shown in figure 17, even if the feelings of the clast access aperture 86c generated during being processed to workpiece W Under condition, due to the high material of wear resistance, bore region is also hardly scraped by clast.Therefore, because can reduce due to chip The abrasion of caused bore region, so rolling of the pressing component 87 relative to pedestal 10 caused by the abrasion by hole 86c can be reduced It is dynamic.Therefore, parallel rule 80 can be firmly secured to pedestal 10 by ruler fixing device 81.

Referring to Fig.1 7, bore region 86c can be made of material identical with shaft member 85.For example, hole component 86 and axle portion Part 85 can be made of steel.Therefore, as clast access aperture 86c, prevent bore region from more being scraped than shaft member 85.Cause This, can reduce being worn caused by clast in bore region, so as to reduce shaft member 85 and pressing component 87 relative to The shaking of pedestal 10, wherein shaking due to the abrasion of hole 86c and causing.

Referring to Fig.1 7, individual bore region 86c can also be made of steel.Therefore, the wearability in bore region will than by Such as other regions of pedestal 10 made of aluminium are high.Therefore, it is possible to reduce worn caused by the clast in bore region.

As shown in figure 17, dustproof circular saw 1 has hole 86c and is removably attached to the hole component 86 of pedestal 10.Therefore, when When the bore region damage of hole 86c, only hole component 86 must be replaced with new hole component 86, without replacing entire pedestal 10. Therefore, relatively small component can only be needed replacing to repair the damage of device to hole 86c.

As shown in figure 17, since hole component 86 has tapered upper end 86d, this helps to make in the process of workpiece W The clast of generation deviates, therefore these clasts will not have comparable accumulation in the front end of hole component 86.Therefore, hole portion is accumulated in The clast of the front end of part 86 is not easily accessed the hole 86c of hole component 86.

As shown in figure 17, pedestal 10 include bridging component 10f, bridging component 10f be located at the top of connecting rod 80b and Extend above connecting rod 80b.Base aperture 10g is formed in bridging component 10f, and hole component 86 is inserted into bridging component 10f.Hole Component 86 includes：It the tube 86a that is inserted into datum hole 10g and is formed in around the lower end of tube 86a and in its top With the vertical opposite flange 86b in bottom surface of bridging component 10f.The top with bridging component 10f is provided on tube 86a The vertical opposite slippage retainer 84 in upper surface.Therefore, hole component 86 is connected to bridge by flange 86b and slippage retainer 84 Relay part 10f.

As shown in Figure 20 and Figure 21, between the upper surface and the lower surface of bridging component 10f of the flange 86b of hole component 86 It is provided with and relative rotation power is converted into axial force so that the structure that retainer 84 is pressed against bridging component 10f will be slipped.Hole component 86 It is firmly held relative to bridging component 10f, so as to prevent from shaking relative to bridging component 10f.

Above-mentioned portable circular saw (Portable cutter) 1 includes：With the electricity for making mechanical shoulder cut-off knife piece 22 rotate The annular saw main body (cutter device main body) 20 of dynamic motor 30；And fixed to annular saw main body 20 to cover mechanical shoulder cut-off knife piece 22 The fixed cover 21 of a part for outer radial periphery edge.Pedestal 10 supports annular saw main body 20 so that in the upper and lower directions of annular saw main body 20 Angle can be adjustable to adjust the degree outstanding in a downward direction of mechanical shoulder cut-off knife piece 22 on its upper side.In addition, pedestal 10 also support annular saw main body 20 in the lateral direction so that can adjust the angle on left and right directions to allow mechanical shoulder cut-off knife piece The angle of inclination of 22 center of rotation axis is conditioned.Pivoting centre of the assist shroud 9 in the upper and lower directions of annular saw main body 20 is (perpendicular Directly pivotally support axis 15) near mechanical shoulder cut-off knife piece 22 in gap S between the fixed cover 21 of covering and pedestal 10 Outer radial periphery edge.Assist shroud vertical shift mechanism 25 moves according to the vertical angles of annular saw main body 20 relative to annular saw main body 20 auxiliary Help cover 9.Assist shroud 9 is pivotally attached to pedestal 10 by lateral inclination support shaft 13 in the lateral direction.Mutual interlocking gear 26 is according to circle Angle on the left and right directions of saw body 20 makes assist shroud 9 be rotated in the lateral direction around lateral inclination support shaft 13.

Therefore, as shown in Figures 2 and 3, not only when annular saw main body 20 is moved up and down relative to pedestal 10, but also in annular saw master When 20 lateral inclination of body, assist shroud 9 all follows the angle of annular saw main body 20.The shape of gap S between fixed cover 21 and pedestal 10 Shape changes according to the upper and lower directions of annular saw main body 20 and the angle of left and right directions.Assist shroud 9 corresponds to the shape of gap S as a result, The variation of shape and move.In this way, auxiliary by upper and lower position according to annular saw main body 20 and left and right position coverage gap S It helps cover 9 that can reduce clast to be scattered from the gap S between fixed cover 21 and pedestal 10.

As shown in Figure 6 and Figure 15, assist shroud 9 includes angulation guide 14, and angulation guide 14 is connected to pedestal 10, makes Obtain the angle that can be adjusted on left and right directions.Angulation guide 14 is provided with for annular saw main body 20 to be connected to assist shroud 9 Bracket 14b and 14g.Therefore, the angle on the angulation guide 14 of assist shroud 9 and the left and right directions of annular saw main body 20 can It is adjusted by adjusting the angle of angulation guide 14 in the lateral direction.

As shown in Fig. 2, assist shroud 9 includes being connected to the angle of pedestal 10 in a manner of adjustable-angle in the lateral direction Guiding piece 14, assist shroud 9 further include being connected to angulation guide 14 and the dust cover 24 of annular saw main body 20.Therefore, such as Fig. 7 and figure Shown in 9, dust cover 24 inclines relative to pedestal 10 in the lateral direction according to the angle on the left and right directions of angulation guide 14 Tiltedly.In addition, as shown in Figures 2 and 3, angle of the dust cover 24 according to annular saw main body 20 in the up-down direction, relative to annular saw master Body 20 moves.

As shown in Figures 2 and 3, dustproof circular saw 1 has vertical coupling structure (assist shroud vertical shift mechanism 25), described perpendicular Straight coupling structure is used to be movably coupled to dust cover 24 along the vertical direction relative to annular saw main body 20.Therefore, 24 energy of dust cover The angle of annular saw main body 20 in the up-down direction is enough corresponded to, is moved in the up-down direction relative to annular saw main body 20.

As shown in Fig. 2, vertical coupling structure 25 includes the vertical slot hole 24d being formed in dust cover 24 and from annular saw Main body 20 protrudes and is inserted into the pin 19 in vertical slot hole 24d to be moved along vertical slot hole 24d.Therefore, by relatively easy Structure, dust cover 24 can be connected to annular saw main body 20 in a manner of vertically moving.

As shown in Figures 2 and 3, when the angle of saw blade main body 20 is conditioned in the up-down direction, mechanical shoulder cut-off knife piece 22 outer radial periphery edge moves in the longitudinal direction with the front end intersection point of pedestal 10.Dustproof circular saw 1 further includes that assist shroud is laterally moved Motivation structure 27, the assist shroud transverse moving mechanism 27 make the lower end of dust cover 24 carry out the mobile phase with intersection point in the longitudinal direction When movement.Assist shroud transverse moving mechanism 27 includes being formed in front and back slot hole 14f in angulation guide 14 and from dust cover 24 protrude and are movably inserted into the pin 24e in front and back slot hole 14f along front and back slot hole 14f.

Therefore, because the structure of auxiliary transverse moving mechanism 27, when the outer radial periphery edge and pedestal of mechanical shoulder cut-off knife piece 22 When 10 front end crosspoint is moved in the longitudinal direction, the lower end of dust cover 14 is moved in the longitudinal direction.Therefore, dust cover 24 It is always located near mechanical shoulder cut-off knife piece 22.Therefore, because it is located close to cutting blade 22, dust cover 24 can be advantageously Reduce being scattered for the clast caused by mechanical shoulder cut-off knife piece 22.

As shown in Fig. 2, angulation guide 14 is provided with bracket 14b, annular saw main body 20 rotatably connects along upper and lower directions It is connected to bracket 14b.The front and back slot hole 14f of angulation guide 14 is formed in bracket 14b.Bracket 14b is adjacent with annular saw main body 20, To be connected to annular saw main body 20.Since dust cover 24 is connected to the front and back slot hole 14f of bracket 14b, dust cover 24 also with Annular saw main body 20 is adjacent.Since mechanical shoulder cut-off knife piece 22 is connected to annular saw main body 20, dust cover 24 can be cut with disk Blade 22 is adjacent.Therefore, being scattered for the clast caused by mechanical shoulder cut-off knife piece 22 can be advantageously reduced in dust cover 24.

As shown in Figures 2 and 3, dustproof circular saw 1 includes assist shroud 9 and assist shroud vertical shift mechanism 25.Assist shroud 9 is removable It is connected to fixed cover 21 dynamicly with the pivoting centre (pivotally supporting axis 15 up and down) in the upper and lower directions of cutter device main body 20 The outer radial periphery edge of mechanical shoulder cut-off knife piece 22 in the gap S limited between the fixed cover 21 of covering nearby and pedestal 10.Institute as above It states, and assist shroud vertical shift mechanism 25 allows assist shroud 9 according to the angle in the upper and lower directions of annular saw main body 20 relative to solid Surely 21 movement of cover.

Therefore, as shown in Figures 2 and 3, assist shroud 9 arrives annular saw main body (cutter device main body) 20 in upper and lower by adjusting Angle relative to pedestal 10 upwards, and relative to 21 movement of fixed cover.When annular saw main body 20 tilts in left-right direction, due to Assist shroud 9 is connected to fixed cover 21, therefore assist shroud 9 tilts in the lateral direction also with fixed cover 21.Therefore, because fixed The shape of gap S between cover 21 and pedestal 10 changes according to the angle of annular saw main body 20, so assist shroud 9 is according to gap Shape and move.In this way, assist shroud 9 can reduce clast and be dissipated from the gap S between fixed cover 21 and pedestal 10 It drops out and.

As shown in Figures 2 and 3, portable circular saw (Portable cutter) 1 include cover body (9,21 and 23), cover body (9, 21 and it 23) is connected to annular saw main body (cutter device main body) 20, to cover the outer radial periphery edge of mechanical shoulder cut-off knife piece 22.Cover body can To be tilted together with annular saw main body 20 in the lateral direction.Pivot of the part for cover body according to annular saw main body 20 in the up-down direction Transhipment is dynamic and is moved along the vertical direction relative to annular saw main body 20 so that the pivoting centre in the upper and lower directions of annular saw main body 20 (pivotally supporting axis 15 up and down) nearby can reduce the gap S limited between cover body and pedestal 10.

Therefore, as shown in Figures 2 and 3, the cover body (9,21,23) moved in the up-down direction relative to annular saw main body 20 It is moved by adjusting to annular saw main body 20 angle relative to pedestal 10 in the up-down direction part.As shown in figures 7 and 9, when When annular saw main body 20 tilts in the lateral direction, since cover body is connected in annular saw main body 20, cover body and annular saw main body 20 It tilts together.Therefore, although the shape in the gap between cover body and pedestal 10 can become according to the angle of annular saw main body 20 Change, but the position of a part for cover body (dust cover 24) and angle can change in response to the angle of annular saw main body 20.Cause This, the rotation regardless of round saw body 20 in above-below direction and/or on left and right directions can reduce cover body and pedestal 10 Between gap S, so as to be reliably prevented being scattered for clast.

As shown in Figures 2 and 3, dust cover 24 is slidably connected to justify by the pin 19 being inserted into vertical slot hole 24d Saw body 20.Alternatively, dust cover 24 can be abutted to be arranged and be slided while the guiding wall in annular saw main body 20, and can It is supported by the guiding wall.

Dustproof circular saw 1 is described above as an exemplary embodiment of Portable cutter 1.Alternatively, just The formula cutter device of taking can be the cutter for example using diamond wheel as the circular cutter blade that will be rotated.

As described above, assist shroud 9 and annular saw main body 20 by angulation guide 14 in the lateral direction around lateral inclination branch Hold axis 13 and 17 common inclinations.Alternatively, assist shroud 9 and annular saw main body 20 can tiltably be connected respectively to cross To inclination support shaft 13 and 17.In this case, it will thus provide allow assist shroud 9 according to annular saw main body 20 in the lateral direction Banking motion and inclined mutual interlocking gear in the lateral direction.

As shown in Figures 2 and 3, vertical coupling structure 25 includes being formed in vertical slot hole 24d in dust cover 24 and from circle Saw body (cutter device main body) 20 protrudes and is inserted at least one pin in vertical slot hole 24d to be moved along vertical slot hole 24d 19.Alternatively, vertical coupling structure 25 may include the vertical slot hole being formed in annular saw main body 20 and dash forward from dust cover 24 Go out and is inserted at least one pin in vertical slot hole to be moved along the hole.

As shown in Figures 2 and 3, assist shroud transverse moving mechanism 27 includes the front and back slot hole being formed in angulation guide 14 At least one pin 24e of 14f and hole that is prominent from dust cover and being inserted into front and back extension to be moved along front and back slot hole 14f.It can replace Ground is changed, assist shroud transverse moving mechanism 27 there can be the front and back slot hole being formed in dust cover 24 and dash forward from angulation guide 14 Go out and is inserted at least one pin in front and back slot hole to be moved along the hole.

As shown in Fig. 1 to Figure 25, as the replacement of dustproof circular saw 1, dustproof circular saw 1 shown in Figure 26 to 47 can be used. Dustproof circular saw 1 shown in Figure 26 to 47 has to be prevented as shown in Figure 28 of the replacement of dust cover 24 and 37 shown in Fig. 3 and 12 Dust hood 29.Dustproof circular saw 1 shown in Figure 26 to 47 has Blast mechanism shown in Figure 29 as the replacement of pipe 65 shown in fig. 5 90.Disposal box 28 shown in Figure 26 and Figure 45 also has other than construction shown in FIG. 1 and temporarily holds mechanism 28j.Below In, it, will be mainly for the difference of itself and dustproof circular saw 1 shown in Fig. 1 to 25 about dustproof circular saw 1 shown in Figure 26 to 47 It illustrates.It below will be to the component phase of 1 pair of dustproof circular saw shown in Figure 26 to 47 and dustproof circular saw 1 shown in Fig. 1 to 25 Same component marks identical reference numeral to illustrate.

As in figs. 27 and 28, dustproof circular saw 1 has assist shroud 9.Assist shroud 9 includes dust cover 29 and is used for dust cover 29 are connected to the angulation guide 14 of pedestal 10.As shown in Figure 37 to 40, dust cover 29 has vertical elongated the first side wall 29a, with the of laterally opposite second sidewall 29c of the first side wall 29a and in the lateral direction connect the first side wall 29a and The antetheca 29b of the front end of second sidewall 29c.It is formed with hole 29g in the vertical central area of the first side wall 29a.Shown in Figure 27 Shaft member 27A is inserted into the 29g of hole and is also inserted into the hole 14k of angulation guide 14.In this way, dust cover 29 can revolve It is connected to angulation guide 14 with turning.

As shown in figs. 37 and 38, cam face 29d and 29e is limited in the back edge of the first side wall 29a.Cam face 29d is located in the upper area of the back edge of the first side wall 29a, and can be positioned at the top of hole 29g.Cam face 29e In the lower area of the back edge of the first side wall 29a, and the lower section of hole 29g can be positioned at.Cam face 29d and 29e is recessed forward.Back step 29f is vertically formed at the back of the first side wall 29a between cam face 29d and 29e On edge.

As shown in figure 38, the vertical length of second sidewall 29c is shorter than the vertical length of the first side wall 29a.Second sidewall 29c Upper end be located at the first side wall 29a upper end lower section, the lower end of second sidewall 29c is located at the upper of the lower end of the first side wall 29a Side.The front and rear width of second sidewall 29c is narrower than the front and rear width of the first side wall 29a, and the posterior border position of second sidewall 29c is in opposite In the front position of the back edge of the first side wall 29a.The back edge of second sidewall 29c is configured to the arc of bending, and as schemed Extended with the shape of the neighboring complementation with cutting blade 22 shown in 27.

As shown in Figure 37,39 and 40, the front of the leading edge and second sidewall 29c of antetheca 29b connection the first side walls 29a Edge, and the neighboring on the front-rear direction as shown in figure 30 for relatively facing cutting blade 22.The periphery of cutting blade 22 Edge is enclosed by tri- bread of slot 29f limited by the first side wall 29a, second sidewall 29c and antetheca 29b, and attached positioned at slot 29f Closely.Therefore, the clast generated in process by cutting blade 22 is accommodated by slot 29f, and is flowed along slot 29f.

As shown in Figure 37 to 40, angulation guide 14 includes antetheca 14a on left and right directions, from antetheca 14a vertically backward The the first bracket 14j and the second bracket 14g extended.First bracket 14j extends back from the right end of antetheca 14a, the second bracket 14g It extends back from the central area of antetheca 14a.First bracket 14j and the second bracket 14g are extended parallel to each other.

As shown in Figure 27 and Figure 28, assist shroud 9 is tilted by assist shroud leaning device 25A relative to annular saw main body 20.Example Such as, by making the lower position shown in Figure 27 of annular saw main body 20 rotate to upper position shown in Figure 28, as assist shroud 9 The dust cover 29 of a part turns forward relative to annular saw main body 20.Assist shroud leaning device 25A includes the cam of dust cover 29 Surface 29d and 29e and pin (cam follower) 19A and 19B abutted with cam face 29d and 29e.

As in figs. 27 and 28,19A and 19B is sold to be arranged in annular saw main body 20.For example, pin 19A and 19B can be arranged On fixed cover 21, and protruded in the left to right direction from the left-hand face 21a of fixed cover 21.Selling 19A and 19B has circle The cylindricality of column, wherein the outer radial periphery face each sold abuts corresponding cam face 29d and 29e.When annular saw main body 20 is placed on Shown in Figure 27 when lower position, the lower area of pin 19A contact cam faces 29d, and sell 19B contact cam faces The lower area of 29e.When annular saw main body 20 is placed on upper position shown in Figure 28, pin 19A contact cam faces 29d's is upper Portion region, the upper area of pin 19B contact cam faces 29e.

As shown in Figure 27 and Figure 28, when annular saw main body 20 pivotally supports axis 15 and move up relative to pedestal 10 around vertical When, pin 19A is moved up and is pushed cam face 29d forward.Therefore, because pin 19A's and cam face 29d moves upwards, Dust cover 29 is rotated clockwise around shaft member 27A.When annular saw main body 20 is downward relative to pedestal 10 around axis 15 is pivotally supported vertically When mobile, pin 19B is moved down and is pushed cam face 29e forward.Therefore, because the downward fortune of pin 19B and cam face 29e Dynamic interaction, dust cover 29 rotate counterclockwise around shaft member 27A.

As shown in figure 38, it is formed with hole 14k in the Background Region of the first bracket 14j of angulation guide 14.Shaft member 27A is inserted into the hole 29g and hole 14k of dust cover 29.Therefore, dust cover 29 can be rotated around shaft member 27A, and be drawn via angle Guiding element 14 is pivotally attached to pedestal 10.

As shown in figure 27, when annular saw main body 20 is placed on lower position, the lower end of dust cover 29 is adjacent with pedestal 10.Cause This, dust cover 29 covers the gap S between pedestal 10 and the front end of fixed cover 21.Cutting blade 22 with cutting blade 22 and base The corresponding front position of intersection point of seat 10 can be by making the lower position shown in Figure 27 of annular saw main body 20 be pivoted to Figure 28 institutes The upper position that shows and move backward.

Correspondingly, the lower end of dust cover 29 is made and the comparable shifting of movement in the crosspoint backward also relative to pedestal 10 It is dynamic.Therefore, the lower end of dust cover 29 is moved with always along the longitudinal direction according to the hub switch side in the upper and lower directions of annular saw main body 20 Near cutter 22.Therefore, dust cover 29 can be effective over the gap between pedestal 10 and the front end of fixed cover 21 S。

As shown in Figure 31 to 34, assist shroud 9 is by mutual interlocking gear 26 (angulation guide 14), according to a left side for annular saw main body 20 Angle in right direction tilts in the lateral direction relative to pedestal 10.Particularly, angulation guide 14 is supported around lateral inclination Axis 13 is pivotally attached to pedestal 10.Assist shroud 9 is connected to angulation guide 14 via shaft member 27A, and shaft member 27A is inserted into angle In the hole 14k of guiding piece 14.Therefore, when annular saw main body 20 relative to pedestal 10 in the lateral direction with angulation guide 14 together When inclination, assist shroud 9 can also relative to pedestal 10 around lateral tilt support shaft 13 in the lateral direction with angulation guide 14 It tilts together.

As shown in figs. 30 and 31, annular saw main body 20 is equipped with the Blast mechanism for blowing out air forward from motor shell 4 90.Blast mechanism 90, which has, to be connected to the air blower pedestal 92 of motor shell 4 and is connected to the swivel nozzle of air blower pedestal 92 91.Air blower pedestal 92 may be connected to motor shell 4 to cover the opening 4d of motor shell 4.Opening 4d is located at cooling fan 36 Radial outside, that is, be located at the air from cooling fan 36 flow path in.The 4d that is open is oriented towards front and by air blower base Seat 92 covers.

As shown in Figure 41 to 44, entire outer radial periphery edge of the air blower pedestal 92 including antetheca 92a and around antetheca 92a is preceding The peripheral wall 92b that rear upwardly extends.Upper arm 92e is upwardly extended from the top of peripheral wall 92b.Upper interconnecting piece 92f is from the upper of upper arm 92e End extends back.Connecting hole 92g is formed as passing through upper interconnecting piece 92f in the lateral direction.Underarm 92h is from the lower part of peripheral wall 92b It extends downwardly.Lower interconnecting piece 92i extends back from the lower end of underarm 92h.Connecting hole 92j is formed along under left and right directions extension In interconnecting piece 92i.

As shown in figure 34, air blower pedestal 92 is installed to motor shell by the screw 93 being inserted into connecting hole 92g and 92j The front surface of body 4.As shown in figure 42, circular open 92c and multiple extension slot 92d are formed in antetheca 72a.Multiple extension slots 92d is, for example, three radial slots to extend radially outwardly from opening 92c.Multiple slot 92d are for example arranged with 120 degree at equal intervals.Rotation Turn nozzle 91 to be inserted through opening 92c and be connected to air blower pedestal 92.

As shown in Figure 41 to 44, swivel nozzle 91 includes cylindrical-shaped main body 91a, neck 91c and retainer 91b, wherein round Tubular body 91a, neck 91c and retainer 91b are coaxially disposed around the longitudinal center of cylindrical-shaped main body 91a.In cylindrical-shaped main body It is formed on the outer radial periphery face of 91a and multiple projects radially outward portion 91e.Multiple protruding portion 91e from body spout 91a radially It protrudes and is along the circumferential direction arranged at equal intervals.For example, three protruding portion 91e can be arranged with 120 degree of interval.Each protruding portion 91e has defined axial length around the peripheral surface of body spout 91a.Swivel nozzle 91 is inserted from behind air blower pedestal 92 opening 92c so that protruding portion 91e extends through slot 92d.

As shown in Figure 41 to 44, the diameter of retainer 91b is more than the diameter of body spout 91a and opening for air blower pedestal 92 The diameter of mouth 92c.Therefore, because therefore the opening 92c that swivel nozzle is inserted into air blower pedestal 92 from rear portion works as swivel nozzle When in 91 insertion opening 92c, retainer 91b abuts the rear side of the antetheca 92a of air blower pedestal 92.It is therefore prevented that swivel nozzle 91 are drawn out forwards from air blower pedestal 92.

As shown in Figure 41 to Figure 44, the protruding portion 91e of body spout 91a is inserted into the extension slot of air blower pedestal 92 from the back side In 92d.Then, body spout 91a is rotated about the axis relative to air blower pedestal 92.Therefore, protruding portion 91e is located at air blower Before the antetheca 92a of pedestal 92, to prevent swivel nozzle 91 from being pulled back from air blower pedestal 92.When swivel nozzle 91 When being connected to air blower pedestal 92, neck 91c is located at opening 92c.

As shown in figs. 41 and 42, directed change mechanism 94 allows swivel nozzle 91 relative to air blower pedestal 92 around antero posterior axis Line rotates.Directed change mechanism 94 includes the neck 91c of the opening 92c and swivel nozzle 91 of air blower pedestal 92.Neck 91c tools There is diameter identical with body spout 91a, but does not have protruding portion 91e.Neck 91c is in the cylindrical shape with circular open 92c Shape.Therefore, neck 91c can be rotatable and be firmly supported in opening 92c.In this way, swivel nozzle 91 is opposite It is rotatably attached around front and back axis in air blower pedestal 92.

As shown in Figure 41 to 44, directed change mechanism 94 further includes retainer 91b and prevents swivel nozzle 91 from air blower The protruding portion 91e that pedestal 92 is drawn out.O-ring 95 is connected to the neck 91c of swivel nozzle.The O-ring 95 is located at retainer 91b Between the antetheca 92a of air blower pedestal 92, and cover the gap between swivel nozzle 91 and air blower pedestal 92.

As shown in Figure 41 and 43, swivel nozzle 91 includes relative to the inclined front surface 91f of front and back axis.Air outlet slit 91d extends along the front and back axis of swivel nozzle 91, and is also tilted in the front end of swivel nozzle 91.Air outlet slit 91d's inclines Monoclinic phase for swivel nozzle 91 front and back axis with inclination identical with front surface 91f so that air is relative to axis It is blown out from air outlet slit 91d with predetermined angular.

As shown in figs. 30 and 31, Blast mechanism 90 is located at before annular saw main body 20.The air generated by cooling fan 36 It is introduced into air blower pedestal 92 via the opening 4d of motor shell 4.Air in air blower pedestal 92 is along swivel nozzle 91 Front and back axis pass through through-hole.The air outlet slit 91d of swivel nozzle 91 is towards front openings so that air is via air outlet slit 91d is blown out towards front.

As shown in figure 31, swivel nozzle 91 is arranged around its front and back axis with predetermined angular.The direction of air outlet slit 91d according to Rotary setting in left and right directions or upper and lower directions in of the swivel nozzle 91 around the axis.It therefore, can will be from air outlet slit 91d The air of blowout is adjusted in left and right directions or upper and lower directions is blown out.

As shown in figures 30 and 31, Blast mechanism 90 is not located at the rotation radial direction of cooling fan 36, but direct position In on the flow path for the air that the rotation by cooling fan 36 generates the fluid.Therefore, from cooling fan 36 to air outlet slit The distance of 91d is shorter so that the frictional resistance for being applied to the air flowed therebetween is low, and flow velocity still maintains constant.Therefore, it blows The speed for going out the air of air outlet slit 91d is relatively high.The direction of the air blown out from air outlet slit 91d is by swivel nozzle 91 Direction determines.For example, when the air outlet slit 91d of swivel nozzle is directed towards the mark line guiding piece 10c of pedestal 10, air It may be flowed towards mark line guiding piece 10c.

As shown in figs. 30 and 31, when the direction of the air outlet 91d of Blast mechanism 90 is towards mark line guiding piece 10c, mark The air that the clast that note line guiding piece 10c is nearby gathered can be blown out air outlet slit 91d is blown away.

As shown in Figure 45 to 47, disposal box 28 includes temporarily holding machine for temporarily holding from the cover 28d lid 28f removed Structure 28j.Mechanism 28j is temporarily held with a pair of guide rails 28k and is configured to connect the bridge part of the rear end of a pair of guide rails 28k 28l.A pair of guide rails 28k extends in the longitudinal direction along the peripheral surface of babinet main body 28a.Bridge part 281 limit its own with Gap between the peripheral surface of babinet main body 28a.Covering 28f has the tube 28f2 being open in 28d1 and use for being inserted into cover 28d In the cover portion 28f1 of covering opening 28d1.Cover portion 28f1 is rounded, has a diameter larger than the diameter of tube 28f2, and from tube One end of 28f2 extends radially outwardly.

As shown in Figure 46 and Figure 47, lid 28f is moved backward along guide rail 28k, while the cover portion 28f1 insertions for covering 28f are led The lower section of rail 28k.Therefore, cover portion 28fl is located at the lower section of bridge part 281 and guide rail 28k.Tube 28f2 is between guide rail 28k It projects upwards.When cover 28f when from temporarily hold mechanism 28j be removed when, lid 28f along guide rail 28k move forward.Disposal box 28 Interior clast and air is from preceding effluent to rear side, and then clast can accumulate in rear side.Air from preceding effluent to rear side and then to Lower flowing simultaneously returns to front side, and is finally discharged from disposal box 28 via release aperture 28m.Then, air can for example turn to simultaneously The fixed right side covered in 21 of flow direction, is finally discharged from fixed cover 21.

As shown in figure 41, Blast mechanism 90 includes the air outlet slit 91d for blow out air and can change air outlet slit The orientation of 91d to directed change mechanism 94.Therefore, the orientation of the air blown out from Blast mechanism 90 for example can be according to work It is set as defined angle as condition.

As described above, Blast mechanism 90 has the air outlet slit 91d for air and is configured to orient as follows：This is fixed To enabling air outlet slit 91d to blow out aerial clast is floated in the front of annular saw main body (cutter device main body) 20. In this way, the clast swum in front of eyes of user can be blown away.

As described above, dust cover 24 and 29 can be connected via the angulation guide 14 being arranged near the front end of pedestal 10 To pedestal 10.The size of dust cover 24 and 29 can be reduced.For example, when dust cover can relative to the rotation center of cutting blade 22 When rotatably connecting, dust cover must be near the front end that the rotation center of cutting blade 22 extends to pedestal 10.With it is such Dust cover is compared, and the size of dust cover 24 and 29 can be reduced.

As in figs. 27 and 28, dustproof circular saw 1 include for relative to annular saw main body (cutter device main body) 20 upper and lower The vertical coupling structure (assist shroud leaning device 25A) of dust cover 29 is movably coupled on direction.Vertical coupling structure is used for Dust cover 29 is set to be tilted relative to pedestal 10, and vertical when annular saw main body 20 moves in the up-down direction relative to pedestal 10 Coupling structure is moved relative to annular saw main body 20 in the up-down direction in a synchronous manner.

As shown in Figure 27 and Figure 28, vertical coupling structure includes：The one or more being formed on dust cover 29 is vertical thin It long cam face 29d and 29e and is protruded from annular saw main body 20 and movably abuts cam face along cam face The cam follower (pin at least one of 19A and 19B) of at least one of 29d and 29e.Therefore, by relatively simple Structure, dust cover 29 can be removably couplable to annular saw main body 20 along the vertical direction.

Vertical coupling structure (assist shroud leaning device 25A) shown in Figure 27 and 28 include cam face 29d and 29e with And cam follower (pin 19A and 19B).Alternatively, vertical coupling structure (assist shroud leaning device 25A) can have and be formed Vertical elongated cam faces of one or more in annular saw main body 20 and extend from dust cover 29 and along cam face Movably abut the cam follower ((multiple) pins) of cam face.

It is intended to illustrate disclosure above by reference to the various exemplary embodiments that attached drawing is described in detail, therefore is not restricted Embodiment.Detailed description is intended to teaching those skilled in the art progress, use and/or the various aspects for executing this introduction, therefore not The range of present disclosure is limited in any way.In addition, each supplementary features disclosed above and teaching can be used alone And/or use, or apply and/or use together with other feature and teaching in a manner of any combination thereof, it is improved to provide The method of manufacture and use thereof of Portable cutter and/or the Portable cutter.

Claims (10)

1. a kind of Portable cutter, including：

Cutter device main body has the motor for making mechanical shoulder cut-off knife piece rotate；

Fixed cover is fixed to the cutter device main body to cover one of the outer radial periphery edge of the mechanical shoulder cut-off knife piece Point；

Pedestal is set as supporting the cutter device main body so that can adjust the cutter device master above the pedestal Body is relative to pedestal angle in the up-down direction to adjust the mechanical shoulder cut-off knife piece below the pedestal downward Direction degree outstanding, wherein the pedestal also supports the cutter device main body, enabling adjust the cutter device master Body is relative to the angle on the left and right directions of the pedestal, to adjust the inclination angle of the mechanical shoulder cut-off knife piece in the lateral direction Degree；

Assist shroud is disposed over the outer radial periphery edge of the mechanical shoulder cut-off knife piece, wherein the assist shroud is in the cutting The vicinity of pivoting centre up and down of apparatus main body covers the gap between the fixed cover and the pedestal；And

Assist shroud vertical shift mechanism, be arranged to make the assist shroud according to the cutter device main body in the up-down direction Angle is relative to the cutter device main body or the fixed cover movement.

2. Portable cutter according to claim 1, characterized in that further include：

Lateral inclination support shaft is arranged to that the assist shroud is pivotally connected to the pedestal in the lateral direction；And

Mutual interlocking gear is arranged to make the assist shroud according to cutter device main body angle in the lateral direction around described Lateral inclination support shaft rotates.

3. Portable cutter according to claim 2, wherein the assist shroud includes angulation guide, wherein institute It states angulation guide and is connected to the pedestal in a manner of angle adjustable in the lateral direction, wherein the angulation guide packet Include the bracket for being connected to the cutter device main body.

4. Portable cutter according to claim 1,2 or 3, wherein the assist shroud includes angulation guide, Described in angulation guide the pedestal is connected in a manner of angle adjustable in the lateral direction, wherein the assist shroud is also Dust cover including connecting the angulation guide and the cutter device main body.

5. Portable cutter according to claim 4, characterized in that further include being arranged to the dust cover upper Lower section is removably couplable to the vertical coupling structure of the cutter device main body upwards.

6. Portable cutter according to claim 5, wherein the vertical coupling structure includes：It is vertical elongated Cam face is formed on any one of the dust cover and the cutter device main body；And cam follower, from The other of the dust cover and the cutter device main body are prominent and described in movably being abutted along the cam face Cam face.

7. Portable cutter according to claim 4, wherein

The pedestal is located at the plane limited by front-rear direction and left and right directions,

Wherein, when adjusting the cutter device main body (20) upward, the outer radial periphery of the mechanical shoulder cut-off knife piece (22) The front end intersection point of edge and the pedestal (10) moves in the longitudinal direction,

The Portable cutter includes assist shroud transverse moving mechanism, and the assist shroud transverse moving mechanism is arranged to make institute The lower end for stating dust cover carries out the comparable movement of movement of the intersection point in the longitudinal direction,

The assist shroud transverse moving mechanism includes：It is formed in any one of the angulation guide and the dust cover Front and back slot hole；And along the front and back slot hole be movably inserted into the front and back slot hole from the angulation guide and The other of the dust cover at least one pin outstanding.

8. Portable cutter according to claim 7, wherein the angulation guide includes bracket, the cutting Apparatus main body is pivotally attached to the bracket in the up-down direction,

Wherein, front and back slot hole is stated in the bracket formation.

9. Portable cutter according to claim 5, wherein the vertical coupling structure includes：It is vertical elongated Cam face, the cam face include two of the back edge of dust cover in the longitudinal direction recessed recess portions forward, wherein Protruding portion backward is positioned vertically within two forward between recessed recess portion；And cam follower, the cam follower packet Include the multiple pins being arranged in the cutter device main body that the cam face is movably abutted along the cam face.

10. Portable cutter according to claim 7, wherein the angulation guide includes filling the cutting Set the parallel carrier that main body is connect with the assist shroud, wherein the angulation guide further includes perpendicular to the parallel carrier Antetheca, wherein front and back slot hole is located on a parallel carrier in the parallel carrier of the angulation guide, In be inserted through at least one pin of the front and back slot hole perpendicular to being inserted through on the antetheca of the angulation guide The lateral inclination support shaft in hole.