CN100534710C - Dust-collecting devices and cutting devices with the dust-collecting devices - Google Patents

Abstract

The present invention provides dust collection device and the cutter device with dust collection device. Dust collection device for collecting the cutting fragment of cutter device generation has the separator for utilizing the gravity of cutting fragment by cutting fragment and carrying air separation. The cutting fragment that one dust container collection is separated by separator. Separator includes the separator main body with cutting chip discharge pipe and exhaust pipe. Carrying air after separation is discharged by exhaust pipe from separator main body upward. Isolated cutting fragment is discharged by cutting chip discharge pipe from separator main body downward. Dust container is connected to cutting chip discharge pipe.

Description

The cutter sweep that has the dust gathering-device

Technical field

The present invention relates to a kind of cutter sweep, this cutter sweep has the dust gathering-device, and this dust gathering-device is used for being collected in for example cutting fragment of dust that the cutting operation process of cutter sweep produces.

Background technology

Japanese kokai publication hei 10-180713 has instructed a kind of known cutter sweep that disposes and have the dust gathering-device by bench saw.The dust gathering-device has conduit and dust collecting bag.One end of conduit is connected to the bucket cover of the saw blade that is used to cover bench saw.The dust collecting bag is connected to the other end of conduit.In conduit, be provided with a fan, thereby the cutting fragment that the air power of blowing that the air power of blowing that is produced by fan is added produced by rotating saw blade produces in can the cutting operation process with saw blade is sent into the dust collecting bag.The dust collecting bag is generally made with fabric.Therefore, the mesh of fabric can separate cutting fragment and air, thereby cutting fragment is collected in the dust collecting bag.

Yet in the process of long-time use dust gathering-device, the mesh of fabric may be cut fragment and block.The result will hinder air to pass through the dust collecting bag.Like this, the dust collection efficiency will reduce.

In addition, in order to handle cutting fragment, need beat the dust collecting bag to remove or to remove the dust of deoppilation mesh.May cause cutting fragment to disperse like this by air.Therefore can not cleanly handle cutting fragment.

In addition, in order to compensate the reduction of collection efficiency, need a fan and provide external force for the power of blowing that rotating saw blade produces.

In addition, described Japanese kokai publication hei 10-180713 number bench saw dispose table top with can be with respect to the saw parts of the vertical rotation of table top.The dust collecting bag is connected on the blade shroud by a cylindrical tube installation portion that is arranged on the blade shroud rear side.United States Patent (USP) 6,289 has also been instructed identical structure No. 778.

Yet according to this configuration, the dust collecting bag can extend back from blade shroud.Like this, rotate down when carrying out cutting operation at the saw parts, the dust collecting bag can be relative with the motion of saw parts and motion up, thereby the rear end of dust collecting bag is extended up.In addition, after finishing cutting operation, the saw parts may remain on down position of rotation so that transportation or be stored in the predetermined area.Be difficult to handle bench saw with upwardly extending dust collecting bag.In addition, in order to store bench saw, must guarantee to have the storage area of big height.Just can solve these difficulties if remove the dust collecting bag from bench saw.Yet in the various occasions that store bench saw, the operation of removing the dust collecting bag is pretty troublesome.In addition, in the various occasions that store bench saw, the operation of handling the cutting fragment of collecting is also pretty troublesome.

Summary of the invention

Therefore, the objective of the invention is to instruct a kind of improved dust gathering-device that can effectively collect dust.Another purpose is a kind of improved saw with this dust gathering-device of instruction.

According to an aspect of the present invention's instruction, instruct a kind of cutter sweep.This dust gathering-device comprises cutter sweep, comprising: pedestal; Tool component, it comprises saw blade, this saw blade is rotated by motor-driven; Sliding part moves with respect to this pedestal slidably; The dust gathering-device, it comprises separator and dust container; Wherein, this separator is set up and is configured to gravity by utilizing cutting fragment at least with at least a portion cutting fragment and carrying air separation; And wherein this separator comprises: separator main body, and it has the cutting chip discharge pipe that the cutting fragment that will separate is discharged from this separator main body; And blast pipe, be used for the carrying air after separating is discharged from this separator main body; And wherein, this dust container is connected to this cutting chip discharge pipe, and is set up and is configured to collect the described at least a portion cutting fragment that is separated by separator; This separator and dust container removably are installed to described sliding part.

Therefore, separator utilizes gravity to isolate cutting fragment from the carrying air.The cutting fragment that separates can be collected in the dust container.The textile bags filter that fragment blocks may be cut owing to do not need to use in long-time use, therefore the dust collection efficiency can be improved.Can also cleanly handle cutting fragment in addition because do not need to resemble needed in the art by beaing the cutting fragment that textile bags is eliminated obstruction.

According to an embodiment, separator main body has an inlet tube, makes cutting fragment enter separator main body by inlet tube with the carrying air.The central axis of the position deviation separator main body of inlet tube, make the cutting fragment that enters separator main body by inlet tube under the gravity effect, move towards cutting chip discharge pipe downwards, simultaneously, cutting fragment inwall along separator main body in separator main body rotates in a circumferential direction.

According to this set, force cutting fragment along with the inwall of its rotation in separator main body towards separator main body moves.So just can except gravity, also utilize centrifugal force from the carrying air, effectively to isolate cutting fragment.In other words, separator disposes by cyclone separator.

According to the present invention's instruction on the other hand, instruction comprises the cutter sweep of dust gathering-device.This cutter sweep can comprise cutting tool, covers the lid of cutting tool, and is connected the conduit between lid and the dust gathering-device, thereby the cutting fragment that cutting tool is produced is sent to the dust gathering-device with the carrying air from lid.

According to an embodiment, cutting tool is a saw blade.In addition, cutting tool comprises that also rotation drives the motor of saw blade, makes the saw blade of rotation produce carrying air stream, and this carrying air stream is blown into conduit together with the cutting fragment that saw blade produces via lid.

According to another embodiment, cutter sweep also comprises a tool component with cutting tool and lid, is contained in the ground pedestal in building site, and can be with respect to a sliding part of pedestal slip.Tool component and separator are installed on the sliding part.

According to this set, separator can move with lid when tool component slides with respect to pedestal.Like this, the position between separator and the lid is closed in the sliding process that ties up to tool component and can not changed.Therefore, the slip of tool component can not make the conduit overbending that is connected between lid and the separator.So just cutting fragment can be sent into separator smoothly.

In still another embodiment, the dust container removably is installed on the sliding part.According to this set, after removing, sliding part is easy to dispose cutting fragment from the dust container at the dust container.

According to an embodiment again, cutter sweep also comprises motor that drives cutting tool and a fan that produces the air-flow that is used for cooling motor.Suction pipe is connected between the blast pipe of the upstream side of fan and separator main body.So just can from separator main body, draw air in the separator main body with the negative pressure that fan produces.The result can make the air pressure in the separator main body descend, and allows to draw cutting fragment via lid and conduit effectively from cutting tool one side.

According to the present invention's instruction on the other hand, instruction comprises the lid of rotational circle saw blade, covering saw blade and is connected to the saw of the dust gathering-device of lid, makes the carrying air stream that produces when cutting fragment rotates in lid with saw blade be admitted to the dust gathering-device.This dust gathering-device comprises first dust accumulator, the cyclone unit and second dust accumulator.First dust accumulator limit the first dust collecting chamber and be used to collect from saw blade one side in company with the carrying air send into together, fall under gravity at least a portion cutting fragment in the first dust collecting chamber, for example be massive cutting fragment.The cyclone unit receives carrying air and remaining cutting fragment stream, and cutting fragment wherein is not collected in first dust accumulator.The cyclone main body is used to make cutting fragment along with the circumference rotation of carrying air along inwall, and cutting fragment is under the gravity effect and descend simultaneously.Carrying air after the separation discharges from the cyclone main body up by blast pipe.The cutting fragment that separates discharges from the cyclone main body down by cutting chip discharge pipe.Second dust accumulator limits the second dust collecting chamber and is connected to the cutting chip discharge pipe of cyclone main body, makes the cutting fragment of cutting chip discharge pipe discharging be collected in the second dust collecting chamber.

According to this set, first dust accumulator can be collected massive cutting fragment.The small and light cutting fragment of being collected by first dust accumulator can not sent into the cyclone unit, utilizes gravity and centrifugal force to isolate cutting fragment in the cyclone unit from the carrying air, and then sends into and be collected in second dust accumulator.So just can collect cutting fragment effectively, not need to use textile bags filter of the prior art.

According to an embodiment, saw also comprises an adjusting device, is used to regulate the position of dust gathering-device with respect to lid.So just can regulate the position of dust gathering-device, thereby suitably collect cutting fragment.For example, can regulate the angle position of dust gathering-device, make cyclone unit separation cuts fragment effectively.

According to another embodiment, the dust gathering-device can vertically be installed on the lid rotatably.Can operate adjusting device and regulate the vertical anglec of rotation of dust gathering-device with respect to lid.

According to an embodiment again, saw also is included in the pedestal that lid is supported in vertical rotation between uppermost position in fig-ure and the upper/lower positions.Adjusting device is regulated the relative vertical angle between lid and the dust gathering-device, the relative vertical angle when making lid be in uppermost position in fig-ure or the relative vertical angle the most on the top the time to be in upper/lower positions or to lean on upper/lower positions most less than lid.

Like this, lid just can not be subjected to the dust gathering-device to move to uppermost position in fig-ure or the most intrusively, reduces relative vertical angle because the dust gathering-device can rotate.Otherwise, when lid moves to upper/lower positions or during by upper/lower positions, can guarantee relative angle greatly between dust gathering-device and lid.So just can prevent that the cyclone unit from tilting excessive with respect to vertical direction.The result just can the preferable separative efficiency of keeping tilting unit.

In still another embodiment, adjusting device comprises a restraint device and a bracing or strutting arrangement.Restraint device is used to prevent the relative rotary motion between lid and the dust gathering-device, thereby dust gathering-device with lid is rotated when rotating in the centre position of lid between upper/lower positions and uppermost position in fig-ure down.When middle position rotated up, it for example was horizontal level with the precalculated position that the dust gathering-device is supported on respect to pedestal that bracing or strutting arrangement is used to overcome gravity at lid.

According to an embodiment again, the dust gathering-device also comprises the single bottom of the bottom that limits the first and second dust collecting chambers.Open bottom and can discharge the cutting fragment that is collected in the first and second dust collecting chambers simultaneously a time.

In still another embodiment, first dust accumulator that limits the first dust gathering-device has a front portion that is detachably connected to lid, and width that should the front portion is narrower than remainder.According to this set, the easier front portion of holding narrower width of operating personnel is so that be connected to the dust gathering-device on the lid and disconnect the dust gathering-device from lid.

In still another embodiment, limit the engaging groove that first dust accumulator of the first dust gathering-device has the both lateral sides of being formed on, described engaging groove extends near the top edge of first dust accumulator and along this top edge, thereby operating personnel can cooperate with these grooves with finger and hold the dust gathering-device.According to this set, operating personnel can hold the dust gathering-device at gathering-device securely after lid is removed.Engaging groove preferably is formed on roughly corresponding the position of dust gathering-device center of gravity.

According to the another aspect of the present invention's instruction, instruction comprises the bench saw of table top, saw parts, dust gathering-device and jockey.Table top defines the surface that is used to settle workpiece.The saw parts can vertically be installed on the table top rotatably, and comprise a saw blade and the lid that is used to cover saw blade.The dust gathering-device is used for being collected in the cutting fragment that the cutting operation process saw blade of workpiece produces.Jockey vertically is connected to the dust gathering-device on the saw parts rotatably.

According to this set, can make the position of dust gathering-device independent with the upright position maintenance of saw parts.For example the dust gathering-device can be positioned at upper/lower positions, and the saw parts also are positioned at upper/lower positions.Facilitate the bench saw that to have the dust gathering-device like this and be transported to the appointed place.Particularly be convenient to bench saw is stored in the less storage area of aspect ratio.

According to an embodiment, saw blade is a rotating saw blade, and lid has the delivery pipe that is connected to lid.The cutting fragment that is produced by saw blade is blown into delivery pipe together in company with the carrying air stream that rotating saw blade produces.Jockey comprises the import pipe fitting that is installed in rotatably on the dust gathering-device, and this pipe fitting has first end that is connected to delivery pipe and second end that leads to the dust collecting chamber.

According to another embodiment, jockey is configured to be connected to the dust gathering-device, makes the dust gathering-device freely to rotate relative to the saw parts under the gravity effect.According to this set, can under the gravity effect, make the dust gathering-device normally remain on upper/lower positions.

According to an embodiment again, jockey is used to be connected to the dust gathering-device, makes the dust gathering-device can saw the parts rotation relatively in limited rotating range.In addition, holding device temporarily remains on centre position in the limited rotating range with the dust gathering-device.

According to this set, when the dust gathering-device was maintained at the centre position, the dust gathering-device can for example be in the rotary movement of the saw parts of cutting operation in company with saw parts vertically rotation together.So just can locate the dust gathering-device like this, make the dust gathering-device can collect cutting fragment effectively.Unclamp holding device the dust gathering-device is rotated down under the gravity effect, thereby the dust gathering-device can be remained on upper/lower positions so that transportation or store.

According to another embodiment, bench saw also comprises a limited part, is used for supporting the dust gathering-device from downside, with a bottom pivot pin end of restriction dust gathering-device.According to this set, can prevent that the dust gathering-device from influencing other element, such as displaceable element, particularly saw the sliding support of parts.So just can prevent that dust gathering-device and limited part from sustaining damage.

According to an embodiment again, be installed in bracing or strutting arrangement on the table top can vertically rotate with horizontal movement supporting the saw parts.Limited part is installed on the bracing or strutting arrangement.

According to another embodiment, limited part overcomes gravity and the dust gathering-device from the downside resiliency supported.So just can when moving to upper/lower positions, the dust gathering-device absorb potential impact or the vibration that is applied on the dust gathering-device.Therefore, can prevent or minimize the generation of impulsive sound or chatter.

According to another embodiment, a rolling member is housed on limited part, make limited part contact with the dust gathering-device by rolling member.According to this set, can guarantee of vertically rotatablely move the in the horizontal direction smooth motion of dust gathering-device in response to the saw parts.So just can further reduce the damage that dust gathering-device and limited part may be subjected to, thereby improve the durability of dust gathering-device.

According to the present invention's instruction on the other hand, instruction comprises the bench saw of table top, saw parts and dust gathering-device.Table top defines the surface that is used to settle workpiece.The saw parts can vertically be rotated and laterally are installed on the table top rotatably, and comprise a rotatable saw blade and the shell that is used to cover saw blade.The dust gathering-device is installed on the saw parts and comprises first dust accumulator, cyclone unit and second dust accumulator of mutual assembling.First dust accumulator limits the first dust collecting chamber and is connected to lid, thereby the cutting fragment that saw blade is produced in cutting operation is admitted to the first dust collecting chamber together in company with carrying air stream, and partly is collected in the first dust collecting chamber under the gravity effect.The cyclone unit receive carry by air, be not collected in the cutting fragment in the first dust collecting chamber.The cyclone unit comprises cyclone main body, cutting chip discharge pipe and blast pipe.The cyclone main body has inwall, and is set up and is constructed so that cutting fragment rotates along the circumference of inwall together in company with the carrying air, and cutting fragment descends under the gravity effect simultaneously.Carrying air after the separation is by blast pipe discharging up from the cyclone main body.The cutting fragment that separates is by cutting chip discharge pipe discharging down from the cyclone main body.The position of cyclone unit is to determine like this, makes the cyclone unit move to the upside of the first dust collecting chamber when the saw parts laterally rotate in one direction together with the dust gathering-device.

According to this set, first dust accumulator is collected massive cutting fragment, and second dust accumulator can be collected the small and light cutting fragment after being added centrifugal force and separate by cyclone unit by using gravity.In addition, because the cyclone unit moves to the upside of the first dust collecting chamber when the saw parts laterally rotate in one direction together with the dust gathering-device, therefore the cutting fragment that is collected in the first dust collecting chamber can not move to the cyclone unit under the gravity effect.Like this, even when the saw parts in order to carry out the inclined cut operation lateral inclination take place, also can collect cutting fragment effectively.

According to an embodiment, the cyclone unit be positioned in the first dust collecting chamber with the saw parts the opposite sides of horizontal direction of rotation.

According to another embodiment, the first dust collecting chamber comprises inlet, terminal and outlet.Terminal is relative with inlet on the direction of the cutting fragment stream that enters inlet, makes cutting fragment bump terminal.Outlet is set on the horizontal side of collecting chamber, and its position on the direction of inlet with the terminal predetermined distance of being separated by, thereby between outlet and terminal, limit a space, in order to avoid cutting fragment is owing to take place to rebound with terminal bump back and enter outlet.

According to this set, cutting fragment stream before entering the cyclone unit, exported and terminal between the intermediate buffering in space.In other words, this space is as a buffering area.So just cutting fragment can be collected in first dust accumulator effectively, and can not make cutting fragment enter the cyclone unit because of bounce.So just can improve the dust collection efficiency.

According to an embodiment, increase gradually on the direction of the cutting fragment stream of the cross-sectional area of the first dust collecting chamber in the first dust collecting chamber.For example, the first dust collecting chamber can have streamlined configuration.

According to this set, the air pressure of the carrying air of the first dust collecting chamber of flowing through is descending on the direction of outlet gradually.Like this, the flow velocity of cutting fragment and the carrying air flow velocity will descend gradually, and not can the carrying air in turbulization.The result just can guarantee that the major part of cutting fragment drops in the first dust collecting chamber to be collected within it.So just can improve the dust collection efficiency.

According to the present invention's instruction more on the one hand, instruction comprises the annular saw of saw parts and dust gathering-device.The saw parts comprise rotatable saw blade and are used to cover the shell of saw blade.The dust gathering-device is connected to the saw parts and comprises first dust accumulator, cyclone unit and second dust accumulator of assembling each other.First dust accumulator limits the first dust collecting chamber, and it comprises inlet, terminal and outlet.Terminal flows on the direction of inlet relative with inlet at cutting fragment, make cutting fragment and terminal clash into.Outlet is set on the horizontal side of collecting chamber, and its position on the direction of inlet with the terminal predetermined distance of being separated by, thereby between outlet and terminal, limit a space, in order to avoid cutting fragment is owing to take place to rebound with terminal bump back and enter outlet.

According to this set, also can collect cutting fragment effectively by incorporating the cyclone unit into.In addition, by and inlet/outlet and terminal between cushion space, also can collect the cutting fragment in the first dust collecting chamber effectively.

Description of drawings

Fig. 1 is a front view of representing the slip bench saw of embodiment according to the present invention first;

Fig. 2 is the plane of Fig. 1, has also dotted a suction pipe representing the bench saw of embodiment according to second;

Fig. 3 is the vertical cross-section diagram of a separator main body of slip bench saw;

Fig. 4 is the front view according to the slip bench saw of third generation table embodiment;

Fig. 5 is a perspective view of representing the slip bench saw of embodiment according to the 4th;

Fig. 6 is a side view of representing the slip bench saw of embodiment according to the 4th, the saw parts when it shows bucket cover and turns to upper/lower positions;

Fig. 7 representation class is like the side view of Fig. 6, but it shows the saw parts of the lid with the uppermost position in fig-ure of turning to;

Fig. 8 is a plane of representing the slip bench saw of embodiment according to the 4th;

Fig. 9 is the perspective view of dust gathering-device of representing the slip bench saw of embodiment according to the 4th;

Figure 10 is the side view of dust gathering-device;

Figure 11 is the sectional view along XI-XI line drawing among Figure 10;

Figure 12 is the partial, exploded perspective view of dust gathering-device;

Figure 13 is the decomposition diagram of dust gathering-device;

Figure 14 is the vertical cross-section diagram of seeing from the horizontal side of dust gathering-device, and shows the position at saw parts first outer wall and entrance member when being in upper/lower positions;

Figure 15 is the vertical cross-section diagram of similar Figure 14, but it shows the position at saw parts first outer wall and entrance member when being in uppermost position in fig-ure;

Figure 16 is the side view of dust gathering-device, and represents the state that bottom is opened;

Figure 17 to 19 represents the schematic diagram of the slip bench saw of embodiment according to the 4th, and shows the different vertical position of rotation of saw parts;

Figure 20 is the perspective view of dust gathering-device of representing the slip bench saw of embodiment according to the 5th;

Figure 21 is the plane of the gathering-device of dust shown in Figure 20;

Figure 22 is the view of the dust gathering-device that direction is seen shown in the arrow XXII from Figure 21;

Figure 23 is the cross-sectional view along XXIII-XXIII line drawing among Figure 21;

Figure 24 is the cross-sectional view along XXIV-XXIV line drawing among Figure 22;

Figure 25 represents a side view of the slip bench saw of embodiment according to the 6th, and shows the saw parts that are positioned at the uppermost position in fig-ure place;

Figure 26 is a perspective view of the bench saw of slip shown in Figure 25, and shows the saw parts that are positioned at the uppermost position in fig-ure place;

Figure 27 is the side view of similar Figure 25, but shows the saw parts that are positioned at upper/lower positions place;

Figure 28 is the perspective view of similar Figure 26, but shows the saw parts that are positioned at upper/lower positions place;

Figure 29 is the decomposition diagram of dust gathering-device of representing the slip bench saw of embodiment according to the 6th;

Figure 30 is the cross-sectional view along XXX-XXX line drawing among Figure 29, and shows the syndeton between the delivery pipe of the entrance member of dust gathering-device and saw part covers;

Figure 31 is the schematic sectional view of a part of dust gathering-device of seeing along the XXXI direction of arrow among Figure 29;

Figure 32 is the perspective view of entrance member of dust gathering-device of representing the slip bench saw of embodiment according to the 7th;

Figure 33 represents the side view of the slip bench saw of embodiment according to the 7th, and shows the saw parts that are positioned at upper/lower positions place;

Figure 34 is a right view of representing the slip bench saw of embodiment according to the 8th;

Figure 35 is the perspective view of the slip bench saw seen from left rear side among Figure 34;

Figure 36 is the view of similar Figure 34, but shows the saw parts that are positioned at upper/lower positions place;

Figure 37 is the perspective view of similar Figure 35, but shows the saw parts that are positioned at upper/lower positions place;

Figure 38 is the decomposition diagram of dust gathering-device of representing the slip bench saw of embodiment according to the 8th;

Figure 39 is the schematic plan view of dust gathering-device;

Figure 40 is the schematic sectional view of a part of dust gathering-device;

Figure 41 is the schematic elevational view of dust gathering-device; And

Figure 42 is the schematic elevational view of similar Figure 41, but shows the position of dust gathering-device when the saw parts are laterally rotated.

The specific embodiment

Can utilize each disclosed supplementary features of context and instruction separately or the bench saw that combines and realize improved dust accumulator and have this dust accumulator with further feature and instruction.Representative instance of the present invention has utilized many these supplementary features and instruction separately or with other features and instruction in combination, below will describe in detail with reference to accompanying drawing.This detailed description only is in order to instruct those of ordinary skill in the art to realize preferred version of the present invention in more detail, rather than will limit the scope of the invention.The claim of only having the right defines protection scope of the present invention.Therefore, the feature that discloses in below describing in detail and the combination of step are possible dispensable for broadly realizing the present invention, but have only instructed concrete representative instance of the present invention.In addition, the various features of representative instance and dependent claims can make up in the mode that does not specifically list, so that the present invention is provided other useful embodiment.

(first embodiment)

Below to illustrate that of the present invention first represents embodiment referring to figs. 1 through Fig. 3.With reference to Fig. 1, shown in representative slip bench saw 1 comprise proper arrangement in the building site ground pedestal 10, can be in a generally horizontal plane with respect to the rotating disk 11 of pedestal 10 rotations, first slide plate 12 that can on left and right direction shown in Figure 1, slide with respect to rotating disk 11, and can be with respect to second slide plate 13 of first slide plate, 12 slips on left and right direction.In addition, slip bench saw 1 also comprises saw parts 2 with saw blade 14.Slip bench saw 1 also comprises the dust gathering-device that is used for collecting the cutting fragment that cutting operation process produces, and will be described below.

As shown in Figure 2, rotating disk 11 have a discoid 11a and with the whole extension 11b who forms and extend from the part of the excircle of discoid 11a (shown in Fig. 2 right half) outward radial of discoid 11a.Can operate a fixture 11c rotating disk 11 is fixed on required position of rotation with respect to pedestal 10.

As shown in Figure 1, a fence 10a is fixedly installed on the pedestal 10, extends across rotating disk 11.Therefore,, workpiece can be placed on the rotating disk 11 like this, a side of workpiece is contacted with fence 10a for cut workpiece.Can workpiece be pressed on the upper surface of rotating disk 11 with an anchor clamps (not shown).

First slide plate 12 has sliding part 12a and tumbler 12b.As shown in Figure 1, sliding part 12a is set at the position near rotating disk 11 left part.It is adjacent with the left side of sliding part 12a that tumbler 12b is set to.Rotating disk 11 supports sliding part 12a by pair of parallel horizontal arm 12c, and sliding part 12a can slided on the left and right direction shown in Fig. 1.But tumbler 12b by axle 12d lateral rotation be installed on the sliding part 12a, tumbler 12b can be in Fig. 1 be rotated on the thickness direction of plate.A handle 12e is installed so that tumbler 12b is fixed on required rotational angle with respect to sliding part 12a on sliding part 12a, carries out cutting operation thereby can use with respect to the saw blade 14 and the saw parts 2 of rotating disk 11 lateral inclinations.

As shown in Figure 2, second slide plate 13 has pair of parallel horizontal arm 13a and 13b and a pair of jig arm 13c and 13d.As shown in Figure 1, arm 13a and 13b extend through the upper level of tumbler 12b, make arm 13a and 13b to slide on left and right direction with respect to tumbler 12b.Jig arm 13c is installed in the left end of arm 13a and 13b to be connected between the two.Jig arm 13d is installed in the right-hand member of arm 13a and 13b to be connected between the two.Saw parts 2 are installed in the right side of jig arm 13d.

As shown in Figure 2, saw parts 2 have the motor housing 21 that is integral with each other, main shell 24 and lid 20.From operating personnel's direction (upper right side Fig. 2), motor housing 21 is set at the right side of main shell 24.Motor 22 and cooling fan 23 are set in the motor housing 21.The air-flow that cooling fan 23 produces from motor housing 21 outsides to the inboard comes cooling motor 22.A handle 24a is installed on the main shell 24, is fit to operating personnel and grips in cutting operation process.

From operating personnel's direction (referring to Fig. 2), lid 20 is engaged with the left side of main shell 24.As shown in Figure 1, lid 20 has the installation portion 20a that is installed on the jig arm 13d vertically rotatingly, make saw parts 2 by installation portion 20a vertical rotation be bonded on the jig arm 13d.Lid 20 has a hollow bulb 20b who covers saw blade 14 first halves basically.Can drive saw blade 14 with motor 22, make saw blade 14 shown in arrow A among Fig. 1, rotate cut workpiece in the direction of the clock.The air-flow that produces by rotating saw blade 14 can be blown into the cutting fragment of workpiece hollow bulb 20b.

As shown in Figure 1, the top of an anti-part 27 that splashes is fixed in the hollow bulb 20b, thereby the part 27 of will preventing splashing is positioned at the periphery of lid 20 lower openings, the cutting fragment stream that is blown with antagonism.So just can prevent that cutting fragment is splashed to the peripheral region and is entered hollow bulb 20b by guiding effectively.

Form a delivery pipe 20c with lid 20, be blown into the cutting fragment of hollow bulb 20b with discharging.Like this, the internal communication of the inside of delivery pipe 20c and hollow bulb 20b.In addition, delivery pipe 20c extends roughly meeting on the direction that cutting fragment blows direction.A conduit 3 is connected to the upper end of delivery pipe 20c.

The dust gathering-device comprises lid 20 and conduit 3, also comprises separator 4 and dust container 5.Conduit 3 comprises flexible pipe 3c and is installed in the connector portions 3a and the 3b of flexible pipe 3c opposite end.Connector portions 3a and 3b are connected respectively to the delivery pipe 20c of lid 20 and the inlet tube 41 of separator 4, and lid 20 and separator 4 are connected to each other by conduit 3.

With reference to Fig. 1, separator 4 has the tubular separator main body 40 that preferably is formed from a resin.Tubular separator main body 40 comprises last tube 40a and the following tube 40b that roughly is cylinder, and the latter's diameter dwindles gradually towards leaving the following direction of tube 40a.Form cutting chip discharge pipe 42 with the lower end of descending tube 40b and discharge cutting fragment.As shown in Figure 3, annular slab 40c is installed in the upper end of tube 40a.Tubulose blast pipe 43 is installed in the central opening of annular slab 40c, makes blast pipe 43 extend into tube 40a and coaxial with the central axis of separator main body 40 in vertical direction.

As shown in Figure 3, the upper end of blast pipe 43 has exit opening 43a, and has the inlet opening 43b of tube 40a inner space in the connection in its lower end.Like this, blast pipe 43 is constructed to allow air to enter inlet opening 43b from the central axis position of separator main body 40, and to separator main body 40 outside drain air.The diameter of exit opening 43a and inlet opening 43b is preferably mutually the same, and greater than the internal diameter of cutting chip discharge pipe 42.According to such setting, the air in the separator main body 40 can be easy to the flow through blast pipe 43 rather than the cutting chip discharge pipe 42 of flowing through.

As shown in Figure 1, inlet tube 41 is installed on the tube 40a and is connected with the connector portions 3b of conduit 3.As shown in Figure 2, inlet tube 41 is positioned in the position of departing from separator main body 40 central axis.Inlet tube 41 in horizontal plane roughly along on the excircle of tube 40a tangentially extend.Like this, the cutting fragment that enters tube 40a by inlet tube 41 will move downward gradually along the inner peripheral wall rotation of separator main body 40 and towards cutting chip discharge pipe 42, and cutting fragment is discharged from separator main body 40 through delivery pipe.By this way, separator 4 is configured to a cyclone separator.

Dust container 5 has the inlet tube 5a on cutting chip discharge pipe of being bonded on 42.As shown in Figure 1, dust container 5 roughly is cuboidal configuration, with inlet tube 5a end disposed thereon, thereby cutting fragment can be collected in the dust container 5.Dust container 5 preferably is made of resin.Especially, dust container 5 is without any textile-like hole or perforation.

A detachable erecting device 15 is fixedly installed on the jig arm 13c, thereby dust container 5 is removably mounted on the jig arm 13c, and then is installed to second slide plate 13 by erecting device 15.So just separator 4 can be releasably attached on second slide plate 13 together with dust container 5.

Although not expression among the figure, dust container 5 can be divided into a upper and lower that hinge means is pivotally connected.In order to handle the cutting fragment that is collected in the dust container 5, can remove dust container 5 from detachable erecting device 15.Available then hinge means relatively rotates with respect to each other the upper and lower of dust container 5, so that form an opening between the upper and lower.Can from dust container 5, discharge cutting fragment by the opening that forms thus with that.

The operation of described representative embodiment is described below with reference to the operation of cutting operation and dust gathering-device collection cutting fragment.

At first, in order to cut a workpiece, can will saw parts 2 by installation portion 20a and turn to suitable turned position up up from the upper/lower positions shown in Fig. 1.Then workpiece is placed on the rotating disk 11.Then starter motor 22 makes the direction rotation of saw blade 14 at the arrow A indication.Operating personnel can be in Fig. 1 the direction of arrow B indication rotate saw parts 2 down, thereby with rotating saw blade 14 cut workpiece.The cutting fragment that produces in cutting operation can blow with rotating saw blade 14, is admitted to conduit 3 then and also arrives separator 4 by the hollow bulb 20b and the delivery pipe 20c of lid 20.

If cut wide workpiece, can saw parts 2 be slided towards the direction of arrow C indication by first slide plate 12 and/or second slide plate 13.So just can cut wide workpiece effectively with saw blade 14.In this case, cutting fragment is admitted to conduit 3 equally and then arrives separator 4.

Separator 4 can will be sent into the cutting fragment of separator 4 and the air separation of carrying cutting fragment.Then cutting fragment is collected in the dust container 5.

More specifically, separator 4 is set between conduit 3 and the dust container 5.Separator main body 40 has the cutting chip discharge pipe 42 of downward discharging cutting fragment (it falls under gravity in the separator main body 40).Dust container 5 is set at downstream one side of cutting chip discharge pipe 42.In addition, separator main body 40 also has a blast pipe 43, can discharge up by this blast pipe with the carrying air of cutting fragment after separating.

By this way, just can separate cutting fragment and carrying air in the separator main body 40, and (be upper and lower to) discharging respectively in the opposite direction.So just can prevent that the dust collection efficiency from reducing because of the mesh that cutting fragment in the prior art blocks the fabric dust collecting bag that is used for the separation cuts fragment.In addition, can also cleanly handle cutting fragment, because do not need to beat the cutting fragment that the dust collecting bag is removed obstruction.

More specifically, separator main body 40 position that is used for the inlet tube 41 of connecting duct 3 is departed from the central axis of separator main body 40 as shown in Figure 2.Therefore, in the circumferencial direction rotation of separator main body 40 inwalls, the cutting fragment that enters separator main body 40 by inlet tube 41 can fall in the separator main body 40 (referring to Fig. 3) towards cutting chip discharge pipe 42 at cutting fragment.The cutting fragment of circumferential rotation can be partial to the circumferential wall of separator main body 40 because of centrifugal force, thereby can isolate cutting fragment effectively from the carrying air.By this way, just can add centrifugal force and from the carrying air, isolate cutting fragment with gravity.

In addition, as shown in Figure 1, saw blade 14 and lid 20 are installed on second slide plate 13 that can slide with respect to pedestal 10.In addition, by dust container 5 and detachable erecting device 15 separator 4 is installed on second slide plate 13.Therefore, when lid 20 or saw parts 2 relative to pedestal 10 moves the time, separator 4 can be mobile together along with lid 20.Therefore, even second slide plate 13 has been slided with respect to pedestal 10, the position relation between lid 20 and the separator 4 can not change yet.Can prevent to be connected conduit 3 overbendings between lid 20 and the separator 4 like this.In addition, this position concerns cutting fragment can not effectively be sent into separator 4 from lid 20 because of conduit 3 overbendings the situation that finally can also prevent.As a result, cutting fragment smoothly and effectively can be sent into separator 4.

In addition, because dust container 5 is releasably attached on second slide plate 13 by detachable erecting device 15,, can dismantle dust containers 5 from second slide plate 13 in order to handle the cutting fragment that is collected in the dust container 5.Can be convenient to handle cutting fragment like this.In addition, because separator 4 and dust container 5 are installed on second slide plate 13 together, even second slide plate 13 has been slided, the position relation of dust container 5 and separator 4 can not change yet.As a result, the simple mechanism that can utilize cutting chip discharge pipe 42 and inlet tube 5a to constitute is sent into dust container 5 with cutting fragment from separator 4.

(second represents embodiment)

On behalf of embodiment, second first represent the remodeling of embodiment, itself and first to represent unique difference of embodiment be to have increased a suction pipe 7 that dots among Fig. 1.Suction pipe 7 is made by a flexible pipe.In addition, suction pipe 7 on being connected respectively to exit opening 43a blast pipe 43 and the opposite end that is formed on the inlet opening in the motor housing 21 of cooling fan 23 upstream sides have connector portions.According to this set, the suction that fan 23 produces can suck air in the separator main body 40 by suction pipe 7.The suction that so just can add fan 23 generations with the power of blowing of rotating saw blade 14 is carried cutting fragments from saw blade 14 1 lateral separator 4.

As mentioned above, separator 4 and motor housing 21 are installed on second slide plate 13 as shown in Figure 2.Therefore, the suction pipe 7 that is connected between separator 4 and the motor housing 21 can overbending, because suction pipe 7 can move with respect to pedestal 10 with second slide plate 13.As a result, suction pipe 7 just can not disturb the slip of second slide plate 13.In addition, suction pipe 7 just can have the length of distance between corresponding separator 4 and the motor housing 21, because suction pipe 7 is not subjected to the influence of second slide plate, 13 slips.

As mentioned above, according to this remodeling, can be with the air in the suction absorption separator main body 40 of fan 23 generations, because the blast pipe 43a of the upstream side of fan 23 and separator main body 40 is connected to one another by suction pipe 7.So just can reduce the air pressure of separator main body 40 inside, thereby draw cutting fragment effectively from saw blade 14 1 sides by lid 20 and conduit 3.The result just can improve the dust collection efficiency.

(third generation table embodiment)

Hereinafter with reference to Fig. 4 third generation table embodiment is described.On behalf of the difference of embodiment, third generation table embodiment and first only be that dust collection container 5 and detachable erecting device 15 are substituted by dust container shown in Figure 46 and detachable erecting device 16 respectively.Third generation table embodiment represents among the embodiment identical in others and first.

As shown in Figure 4, dust container 6 comprises atresia bag 6b and frame unit 6a who defines sack 6b upper opening who is made by plastic or other material, thereby makes the upper opening of sack 6b keep opening wide.Handle 6c and joggle piece 6d form or are installed on the frame unit 6a.

Detachable erecting device 16 is installed on the jig arm 13c and comprises installation portion 16a and arm 16b.Installation portion 16a removably with the joggle piece 6d of dust container 6 engagement.Arm 16b is used for fixing the separator main body 40 that supports separator 4, makes cutting chip discharge pipe that dust container 6 is positioned at separator 4 below 42, and the upper opening of sack 6b is relative with cutting chip discharge pipe 42 simultaneously.Equally according to this set, can obtain and first represent roughly the same function of embodiment and effect.

(first to the possible remodeling of third generation table embodiment)

Above-mentioned first can retrofit by variety of way to third generation table embodiment.

For example, in above-mentioned representative embodiment, separator 4 utilizes gravity and centrifugal force to isolate cutting fragment from the carrying air.Yet also can only utilize gravity to come the separation cuts fragment.For example, separator main body can have wall or the plate that limits a vertical plane, carries airborne cutting fragment and can clash into this vertical plane.Alternatively, in separator main body, form labyrinth shape flow channel, make the wall of the airborne cutting fragment bump of carrying flow channel.Like this, when the vertical walls of cutting fragment bump flow path or wall, the flow velocity of cutting fragment will reduce, and makes the cutting fragment representative that descends under the gravity effect.According to mode identical among these embodiment, can give off cutting fragment from cutting chip discharge pipe.The carrying air can be from upwards discharging of blast pipe.

In addition, although above-mentioned representative embodiment describes in conjunction with the slip bench saw, but the structure of above-mentioned dust gathering-device can be applicable to wherein to saw that bench saw that parts can not slide with respect to pedestal equally, and can be applicable to not have pedestal also not have the portable circular saw of slide mechanism.

In addition, in order to form circulating of cutting fragment in separator main body, the central axis of separator main body will be departed from the position of inlet tube.Alternatively, circulate in order to form, it for example is fin that a deflection piece also can be set in separator main body.

Represent among the embodiment second, suction pipe is connected to the upstream side of fan.Yet suction pipe also can be connected to for example vavuum pump of generating means that independently reduces pressure.

(the 4th represents embodiment)

Describe the 4th hereinafter with reference to Fig. 5 to Figure 19 and represent embodiment.On behalf of embodiment, the 4th first represent the remodeling of embodiment.Therefore, in Fig. 5 to 19, with first represent among the embodiment components identical adopted with Fig. 1 to 3 in identical label, and no longer repeat explanation to these elements.

With reference to Fig. 5 and 6, it illustrates a representative slip bench saw 101.Represent the slip bench saw 1 of embodiment similar to first, slip bench saw 101 comprises pedestal 10, rotating disk 11, the first slide plates 12 and second slide plate 13.Saw parts 102 are installed on second slide plate 13, itself and first to represent the main distinction of the saw parts 2 of embodiment be that the main body cover 24 of saw parts 102 also has an auxiliary handle 24b except handle 24a, and motor housing 21 is not horizontal-extending but tilts to extend upward.In addition, the lid 20 of saw parts 102 is supported on the jig arm 13d by vertical rotation by pivot 26, is similar to the effect of representing installation portion 20a among the embodiment.In addition, on saw parts 2, a dust gathering-device 103 is housed also.

As shown in Figure 6, set bolt 109 is installed on the rotating disk 11, is used for arm 12c with first slide plate 12 and is fixed on position with respect to rotating disk 11.In addition, a set bolt 110 is installed on jig arm 13c, is used for arm 13a and 13b are fixed on position with respect to jig arm 13c, and fixes with respect to pivot member 12b thereupon.Like this, when set bolt 109 and 110 was tightened, saw parts 2 just can horizontal slip, but can only vertical rotation.

In addition, as shown in Figure 5, the Lower Half of saw blade 14 is covered by a safety head that can rotate 25, so that expose the Lower Half of saw blade 14 when saw parts 2 move down.In addition, a trigger 24a1 (referring to Fig. 6) is housed also on handle 24a, when operating personnel's pulls trigger 24a1, motor 22 just starts makes saw blade 14 rotations.

Now dust gathering-device 103 will be described.Dust gathering-device 103 is connected to the delivery pipe 20b of lid 20, and comprises the first collecting chamber 3a as shown in figure 13, the cyclone unit 3c and the second dust collecting chamber 3b.As shown in figure 11, the first dust collecting chamber 3a is limited between first outer wall 30 and the intermediate bulkheads 31.The second dust collecting chamber 3b is limited between the intermediate bulkheads 31 and second outer wall 32.

As shown in figure 13, entrance member 33 is mounted and is supported between first outer wall 30 and the intermediate bulkheads 31.One end of entrance member 33 leads to the first dust collecting chamber 3a.The other end of entrance member 33 is engaged on the delivery pipe 20c (referring to Fig. 6) of lid 20.Therefore, the inner space in the hollow bulb 20b of lid 20 is communicated with the first dust collecting chamber 3a by entrance member 33.As shown in figure 13, outlet opening 31c is formed in the intermediate bulkheads 31.The end of outlet opening 31c leads to the first dust collecting chamber 3a.The other end of outlet opening 31c is connected to cyclone unit 3c.Therefore, the first dust collecting chamber 3a is communicated with the inner space of cyclone unit 3c by outlet opening 31c.Preferably, the residing position of outlet opening 31c is than entrance member 33 height.

As shown in Figure 9, cyclone unit 3c is set between the first dust collecting chamber 3a and the second dust collecting chamber 3b.The function of cyclone unit 3c and first represents the separator 4 of embodiment similar, and this cyclone unit 3c comprises a cyclone main body 36 and an exhaust part 37.Cyclone main body 36 comprise general cylindrical shape last tube 36a and with the integrally formed down tube 36b (referring to Figure 10) of last tube 36a.The diameter of following tube 36b dwindles gradually towards the below.

Peripheral wall with last tube 36a forms an inlet tube 36c (referring to Figure 13), and it joins on the outlet opening 31c of intermediate bulkheads 31.

The first dust collecting chamber 3a is communicated with the inner space of the last tube 36a of cyclone main body 36 by outlet opening 31c and inlet tube 36c.

The central axis of tube 36a on the position deviation of inlet tube 36c, and roughly tangentially extend from the excircle of last tube 36a.Like this, by inlet tube 36c enter tube 36a the inner space cutting fragment and the carrying air will rotate (referring to Fig. 8) along the inwall of last tube 36a in a circumferential direction.The cutting fragment of rotation can fall gradually, and the cutting chip discharge pipe 36d on being formed on down tube 36b lower end is discharged in the second dust collecting chamber 3b (referring to Figure 13).

As shown in figure 13, exhaust part 37 has a ring part 37a and passes the 37b of blast pipe portion of the central opening extension of ring part 37a.As shown in Figure 9, ring part 37a is installed like this, it covers the upper shed of the last tube 36a of cyclone main body 36 skill.The 37b of blast pipe portion extends into cyclone main body 36 along the central axis of cyclone main body 36.The 37b of blast pipe portion has exhaust port 37b1 and air inlet openings 37b2 respectively at the upper and lower end of the 37b of blast pipe portion.Therefore, be admitted to the cyclone main body and the carrying air that separates with cutting fragment can flow into the air inlet openings 37b2 of the 37b of blast pipe portion, and discharge from exhaust port 37b1.The position that is preferably near exhaust port 37b1 is provided with a woven wire 37c who strides the inner space extension of the 37b of blast pipe portion, in case enter cyclone main body 36 without approval, or prevent that foreign matter from entering cyclone main body 36.Preferably, it is enough big that the mesh of woven wire 37c is designed to be, and can not stop flowing of air.

As shown in figure 13, be formed into oral pore 32a in second outer wall 32 of intermediate bulkheads 31, it limits the second dust collecting chamber 3b.The end of ingate 32a leads to the second dust collecting chamber 3b.The other end of ingate 32a is connected to the cutting chip discharge pipe 36d of cyclone main body 36.So just can by ingate 32a will be with cyclone unit 3c in the cutting fragment of carrying air separation be discharged among the second dust collecting chamber 3b.

As shown in Figure 7, cyclone unit 3c is connected to ingate 32a, and simultaneously cyclone unit 3c locatees like this with respect to second outer wall 32, makes cyclone unit 3c with respect to the tilt angle of about 25 ° (for example being 25 ° ± 10 °) of vertical direction.So just can guarantee has bigger space segment in the second dust collecting chamber 3b below the 32a of ingate.

Shown in Figure 10 and 16, dust container 3 comprises: lid 34, and it is constructed to a pallet that is used to handle the cutting fragment of collection; An and joggle piece 35 that is used for engage lids 34.As shown in figure 11, the position of lid 34 between the first and second dust collecting chamber 3a and 3b below extension, to limit the end of these chambers.As shown in figure 13, be connected with a bar 34 at the end (left end among Figure 13) of lid 34, this bar 34 has the opposite end that is rotatably connected to first and second outer walls 30 and 32 respectively.

As shown in figure 13, joggle piece 35 has a pair of bar 35b, and they are arranged on the centre position with respect to vertical direction, and extends from joggle piece 35 both sides.Bar 35b is rotatably connected to first and second outer walls 30 and 32 respectively, makes joggle piece 35 to rotate around the approximate horizontal axis that bar 35b limits.

Form a pawl 35a in the lower end of joggle piece 35, its can with lid 34 1 ends, with the connector portions opposing lower surface engagement of bar 34a.An elastic component 38 (being wind spring in this representative embodiment) is set between the upper end and first outer wall 30 of joggle piece 35, makes joggle piece 35 be offset on the direction of pawl 35a and lid 34 engagements.

With reference to Figure 14 and 15, dust container 103 also comprises the angle of rotation adjusting device that is used to regulate with respect to the angle of rotation of lid 20.As shown in figure 13, the angle of rotation adjusting device is included in the shaft 33a that forms on the entrance member 33.Shaft 33a roughly is cylindrical conformation, and has the axis with the longitudinal axis perpendicular of entrance member 33.Shaft 33a has end vis-a-vis, and it is plugged between the entrance member 33 and first outer wall 30 respectively and between entrance member 33 and the intermediate bulkheads 31.The rotation restriction 33b of portion is formed on the shaft 33a, and radially outstanding from the peripheral wall of shaft 33a.

First outer wall 30 and intermediate bulkheads 31 have rotation support slot 30b and 31b respectively, are used to rotate the opposite end of the 33a of supporting revolving shaft portion, make dust container 103 can rotate the axis of axial region 33a with respect to lid 20 vertical rotation.In addition, first outer wall 30 and intermediate bulkheads 31 also have 30a of wall portion and the 31a that extends from the circumference of support slot 30b and 31b respectively, are used for the engagement with the rotation restriction 33b of portion, so that the anglec of rotation of restriction shaft 33a.

Cutting operation below with reference to workpiece illustrates that the above-mentioned the 4th represents the operation of embodiment.At first as shown in figure 17, saw parts 2 are turned to suitable turned position (being the position of rotating about 40 ° of angles from horizontal level) vertically upward in this representative embodiment.Here, the horizontal level of saw parts 2 comes the upper/lower positions of phalanges saw parts 2, and wherein the delivery pipe 22c of lid 20 roughly extends in the horizontal direction.Then workpiece W is placed on the rotating disk 11, and fixes from the top with a holding device (not shown).In this step, the right-hand member of dust container 103 (from Figure 17) contacts with second slide plate 13 under the gravity effect, makes dust container 103 be in approximate horizontal position shown in Figure 15, and wherein lid 34 and delivery pipe 22c extend on general horizontal direction.

Operating personnel are starter motor 22 subsequently, makes the direction rotation of saw blade 14 by arrow R indication among Figure 17.Then, operating personnel will saw parts 2 and rotate about 15 ° (for example being 15 ° ± 5 °) angles from position shown in Figure 17 down, make saw parts 2 be positioned at the position shown in Figure 18, wherein saw parts 2 and rotate about 25 ° of angles from horizontal level.Along with the rotation of saw parts 2, entrance member 33 rotates counterclockwise 15 ° of identical angles from position shown in Figure 17.Position after rotation, the rotation restriction 33b of portion of shaft 33a and the engagement of the circumferential end of 30a of wall portion and 31a.

When saw parts 2 further rotated about 25 ° (for example being 25 ° ± 5 °) angles down from position shown in Figure 180, saw parts 2 were positioned at approximate horizontal position shown in Figure 19.Along with the rotation of saw parts 2, entrance member 33 further rotates in the counterclockwise direction with saw parts 2.In addition, dust gathering-device 103 also can rotate 25 ° of identical angles with entrance member 33 by the engagement between the circumferential end of the rotation restriction 33b of portion and 30a of wall portion and 31a.The result as shown in figure 19, cyclone unit 3c can be positioned at the approximate vertical position, wherein the central axis of cyclone unit 3c has extended roughly 90 ° (for example being 90 ° ± 5 °) angles with respect to horizontal direction.Under state shown in Figure 19, entrance member 33 is with respect to the horizontal direction about 40 ° of angles (referring to Figure 14) that tilt.

When state shown in Figure 180 turned to state shown in Figure 19, saw blade 14 can cut workpiece W at saw parts 2.Cutting fragment that produces in the cutting operation and air are rotated saw blade 14 together and blow to the top from the right side of as shown in Figure 6 saw blade 14.Cutting fragment is admitted to dust container 103 by the hollow bulb 20b and the delivery pipe 20c of lid 20.

More specifically, cutting fragment is admitted to the first dust collecting chamber 3a by entrance member 33 (referring to Fig. 5 and 11).Those cutting fragments that mass ratio is bigger can fall under gravity into the first collecting chamber 3a and be collected within it.Other the small and light cutting fragment that does not fall under gravity into the first collecting chamber 3a can be along with the carrying air inlet tube 36c of shift-in cyclone main body 36 together.

As shown in figure 12, a baffle plate 31d is installed in the first dust collecting chamber 3a, is used to stop that big quality cutting fragment enters cyclone main body 36.More specifically, baffle plate 31d is formed on the intermediate bulkheads 31 and below inlet tube 36c and extends.

As shown in Figure 8, the cutting fragment inwall along cyclone main body 36 on the circumferencial direction of pressing arrow T indication that enters cyclone main body 36 by inlet tube 36c rotates, and simultaneously, cutting fragment falls under the gravity effect gradually.So just can utilize centrifugal force and Gravity Separation to go out and not fall into the interior cutting fragment of the first dust collecting chamber 3a, then it be sent into the second dust collecting chamber 3b.As mentioned above, in cutting operation process, cyclone main body 36 can be positioned at the approximate vertical position.So just can use cyclone unit 3c separation cuts fragment effectively.

When saw parts 2 were in upper/lower positions shown in Figure 5, dust container 103 can be located like this, and it is extended towards the upper right side as shown in figure 14.Be convenient to cutting fragment is collected in the lower left quarter of the first dust collecting chamber 3a like this, away from outlet opening 31c, and at the lower left quarter of the second dust collecting chamber 3b, away from ingate 32a.Therefore can increase collectable cutting fragment amount among the first dust collecting chamber 3a and the second dust collecting chamber 3b.

As mentioned above, massive cutting fragment can be collected in the first dust collecting chamber 3a, and small and light cutting fragment is collected in the second dust collecting chamber 3b.When the first dust collecting chamber 3a is cut fragment and is full of, can be with the second dust collecting chamber 3b as ancillary chamber.

For cutting large size workpiece W, as shown in Figure 5, operating personnel can promote to saw parts 2 as shown in Figure 5 to the right.Can the saw parts be slided to the right by first slide plate 12 and second slide plate 13 thus.

After cutting operation, operating personnel can rotate (referring to Figure 18) up with saw parts 2, dust gathering-device 3 is rotated with saw parts 2, and the right side part of saw parts 2 move down gradually.Dust gathering-device 103 can contact with second slide plate 13 then.When saw parts 2 continue to rotate (referring to Figure 17) up, entrance member 33 rotates for example about 15 ° ± 5 ° angles with respect to dust gathering-device 103, make the circumferential end of the rotation restriction 33b of portion away from 30a of wall portion and 31a, dust gathering-device 103 is kept the approximate horizontal position simultaneously.So just can be with wide-angle, for example the maximum rotation angle is 40 ° ± 5 °, continues upwards to rotate saw parts 22 from horizontal level.

In order to handle the cutting fragment that is collected in the first dust collecting chamber 3a and the second dust collecting chamber 3b shown in Fig. 9 and 16, operating personnel can be at first from saw parts 2 dismounting dust gathering-devices 103.Operating personnel can promote the top of joggle piece 35, to overcome the bias force engagement in rotation part 35 of elastic component 38, make the claw 35a of joggle piece 35 break away from lid 34.Then, operating personnel can rotate lid 34 around bar 34a, and the bottom of the first and second dust collecting chamber 3a and 3b is opened simultaneously, handle the cutting fragment of collecting simultaneously.

As mentioned above, represent embodiment according to the 4th, as shown in Figure 5, dust gathering-device 103 has the first dust collecting chamber 3a, the cyclone unit 3c and the second dust collecting chamber 3b.Carry and can fall under gravity in the first dust collecting chamber 3a and be collected within it by air from the cutting fragment that saw blade 14 1 blows side out.The cutting fragment that does not fall into the first dust collecting chamber 3a can enter cyclone unit 3c, and wherein cutting fragment can rotate with the inner peripheral wall of carrying air along cyclone unit 3c, and falls in it.So just can utilize centrifugal force and gravity with cutting fragment and carrying air separation.Cutting fragment is discharged into the second dust collecting chamber 3b from the bottom of cyclone unit 3c by cutting chip discharge pipe 36d subsequently, carries air simultaneously and discharges from cyclone main body 36 by blast pipe 37b 1 from the top of cyclone unit 3c.Like this, the first dust collecting chamber 3a separates with carrying heavier and big cutting fragment in the air, and more small and light simultaneously cutting fragment is by cyclone unit 3c and carrying air separation.

The non fabric filtration device is set in the dust gathering-device 103, is used for from carrying air separation cuts fragment.Therefore, the carrying air stream of rotating saw blade 14 generations is not stopped by fabric filter can.In addition, also can not reduce dust gradually because of the mesh that cutting fragment blocks fabric filter and collect performance.So just cutting fragment can be collected in the dust gathering-device 103 effectively.

In addition, according to this representative embodiment, (30a, 31a 33b) are arranged on shown in Figure 14 and 15 between lid 20 and the dust gathering-device 103 so that regulate the angle position of dust container 103 with respect to lid 20 angle regulator.So just the angle position of dust gathering-device 103 can be adjusted to the appropriate location, for example be convenient to collect cutting fragment effectively with cyclone unit 3c.

Especially, according to this representative embodiment, angle regulator is regulated the relative angle between lid 20 and the dust container 103 like this, and the relative angle that makes lid 20 promptly saw to produce when parts 2 are in uppermost position in fig-ure is sawed the relative angle that produces when parts 2 are in upper/lower positions less than lid 20.Like this, when lid 20 or saw parts 2 when being in uppermost position in fig-ure shown in Figure 17, the relative angle between lid 20 and the dust gathering-device 103 is 140 ° ± 5 °.And when lid 20 or saw parts 2 when being in upper/lower positions shown in Figure 19, relative angle can be 155 ° ± 5 °, and cyclone unit 3c can be extended substantially vertically.

Utilize this adjusting, the precalculated position below uppermost position in fig-ure moves to the process of uppermost position in fig-ure at lid 20 or saw parts 2, and lid 20 can be near dust gathering-device 103.Yet dust gathering-device 103 can not disturb the motion of lid 20.

Move to from precalculated position more than the upper/lower positions the process of upper/lower positions at lid 20 or saw parts 2, the relative angle between dust gathering-device 103 and the lid 20 is bigger.Therefore, when being in upper/lower positions, dust gathering-device 103 is less than the angle (promptly 40 ° ± 5 °) of lid 20 with respect to horizontal direction with respect to the angle (promptly 25 ° ± 5 °) of horizontal direction at lid 20 or saw parts 2.Can make the inclination minimum of cyclone unit 3c like this with respect to vertical direction.The result just can prevent that the separative efficiency of cyclone unit 3c from reducing because of inclination.

In addition, according to this representative embodiment, lid 34 is shown between the first and second dust collecting chamber 3a and the 3b and following extension as Figure 13 and 16.So just can handle the cutting fragment that is collected in the first and second dust collecting chamber 3a and the 3b simultaneously by uncap 20.

In addition, by removing the dust gathering-device simply and the entrance member 33 of dust gathering-device 103 is connected on the delivery pipe from delivery pipe, dust gathering-device 103 can be easy to use for existing bench saw with dust gathering-device.Can enlarge the scope of application of the present invention like this.

(the 5th represents embodiment)

Describe the 5th hereinafter with reference to Figure 20 to Figure 24 and represent embodiment.On behalf of embodiment, the 5th the 4th represent the remodeling of embodiment, and the 4th represents the difference of embodiment only to be to have substituted dust gathering-device 103 with dust gathering-device 104.In addition, the basic structure of dust gathering-device 104 is identical with dust gathering-device 103, but difference mainly is the setting of some element such as lid.Therefore, only be provided with and describe the 5th and represent embodiment in conjunction with dust gathering-device 104 and dust gathering-device 103 different.

With reference to Figure 20, dust gathering-device 104 has the first dust collecting chamber 104a, the cyclone unit 104c and the second dust collecting chamber 104b, and the respectively corresponding the 4th represents the first dust collecting chamber 3a, cyclone unit 3c and the second dust collecting chamber 3b of embodiment.Respectively with limiting the first dust collecting chamber 104a and the second dust collecting chamber 104b by for example blow molding process molded first tube-like piece 140 and second tube-like piece 142 (shown in Figure 21 and 24).First and second tube- like pieces 140 and 142 have second end (the left and right end of seeing) of first closed end and the opening relative with first end separately from Figure 21 and 24.Close second end of the opening of first and second tube- like pieces 140 and 142 with a detachable lid 144, this detachable lid 144 forms the template structure by for example molding process.

As shown in figure 20, a pair of arm 144b is formed on the both lateral sides of lid 144 upper ends, and is pivotally connected to first and second tube- like pieces 140 and 142 respectively.As shown in figure 23, form an engaging piece 144c in the lower end of lid 144, it can mesh with the lower surface of second tube-like piece, 142 right-hand members.In addition, on lid 144, form construction opening 144a, and this opening leads to the first dust collecting chamber 104a, be connected with lid 20 (referring to Fig. 8).

As shown in figure 20, cyclone unit 104c has cyclone main body 146 and exhaust part 147.Cyclone main body 146 has roughly cylindrical circular tube 146a of going up and following tube 146b.The whole formation of following tube 146b and last tube 146a also has the diminishing diameter towards the below.Tube connector 141 is connected between the tube 146a and first tube-like piece 140.More specifically, an end of tube connector 141 is connected to the top of first tube-like piece 140.Be connected to tube 146a on the position of the other end of tube connector 141 central axis of tube 146a or cyclone main body 146 on departing from, thereby tube connector 141 extends tangentially from the circumference of last tube 146a.As shown in figure 23, form cutting fragment discharge orifice 146d in the lower end of following tube 146b, and this opening leads to the second dust collecting chamber 104b.

As shown in figure 20, the central axis of the cyclone main body 146 of cyclone unit 104 tilts with respect to the longitudinal axis of second tube-like piece 142, thereby when saw parts 2 are in upper/lower positions (referring to Fig. 6), the central axis of cyclone main body 146 roughly extends (for example becoming 90 ° ± 5 ° with respect to horizontal direction) along vertical direction.

Shown in Figure 20 and 23, exhaust part 147 has ring part 147a and is inserted into the blast pipe 147b of the central opening of exhaust part 147.Ring part 147a is installed to tube 146a and is gone up to cover the upper opening of tube 146a.Blast pipe 147b places like this, and it extends into cyclone main body 146 along central axis, make blast pipe 147b have exhaust port 147b1 in the upper end, and the lower end has air inlet openings 147b2.

Equally, the 5th represent embodiment can realize representing substantially the same operation of embodiment and effect with the 4th.

(the 4th and the 5th represents may retrofiting of embodiment)

On behalf of the dust gathering-device of embodiment, the 4th and the 5th can or not have the annular saw of rotating disk to be used in combination with the non-sliding type bench saw.

The 4th to represent the angle regulator of embodiment be configuration like this, and rotation restriction portion and stop are separated from each other, and allows the dust gathering-device with respect to lid or the rotation of saw parts when being in horizontal level shown in Fig. 7 and 15 at the dust gathering-device.But angle regulator also can be provided with like this, makes the dust gathering-device with respect to lid or saw parts forward rotation, so that sawing the angle that reduces when the precalculated position of parts below uppermost position in fig-ure moves to uppermost position in fig-ure with respect to lid or saw parts.

In addition, although angle regulator is arranged between the delivery pipe 20c of dust gathering-device 103 (104) and lid 20, angle regulator also can be arranged between lid 20 and the delivery pipe 20c or dust gathering-device and saw any other position between the parts 2.

(the 6th represents embodiment)

Describe the 6th hereinafter with reference to Figure 25 to Figure 31 and represent embodiment.On behalf of embodiment, the 6th the 4th represent the remodeling of embodiment.Therefore, represent the identical parts of embodiment to adopt identical label and no longer detailed description with the 4th.

The slip bench saw 201 and the 4th of this representative embodiment represents the slip bench saw 101 of embodiment substantially the same.Therefore main in conjunction with representing the different structure of the slip bench saw 101 of embodiment to describe the structure of slip bench saw 201 with the 4th.

As shown in figure 25, light-emitting device 217 for example is on the handle 24a of fluorescent lamp or incandescent lamp saw parts 210 being installed in corresponding saw parts 2.Light-emitting device 217 is arranged in the rear side (right side of Figure 25) of handle 24a.

The dust gathering-device 203 of corresponding dust gathering-device 103 has an entrance member 223 (referring to Figure 29).Entrance member 223 correspondences entrance member 33 and are had cylindrical shape shaft 223a (corresponding shaft 33a) and be used to be connected to the 223b of tube connector portion of the delivery pipe 20c of lid 20.The relative both sides of shaft 223a are sealed by circular lid 223c.The 223b of tube connector portion radially extends from the circumference court of shaft 223a, and has the diameter that can be connected to delivery pipe 20c hermetically.In a side relative with shaft 223a, on the circumference of shaft 223, form an opening 223d (referring to Figure 30), its diameter is substantially equal to the internal diameter of the 223b of tube connector portion, and this opening leads to the first dust collecting chamber 3a all the time.The inner space and the first dust collecting chamber 3a that so just can be communicated with shell 20 all the time by entrance member 223.

As shown in figure 29, the opposite end of shaft 223a rotatably is contained in respectively in the circular support groove 222c that forms in the inner surface of first outer wall 30 and intermediate bulkheads 31.Therefore, at the front position of the first dust collecting chamber 3a, entrance member 223 can freely rotate entrance member 223a with respect to first outer wall 30 and intermediate bulkheads 31 rotations in vertical direction.As shown in figure 30, the 223b of tube connector portion stretches out from the first dust collecting chamber 3a by the opening 222d that the front end at the first dust collecting chamber 3a forms.Opening 222d is constructed to have in vertical direction the opening of a prolongation, makes the entrance member 223 can vertical rotation.Be connected at entrance member 223 under the state of delivery pipe 20c of lid 20, dust gathering-device 203 can rotate with respect to the longitudinal axis J of delivery pipe 20c, and maximum angle is 5 °.In addition, dust gathering-device 203 can also upwards rotate with respect to longitudinal axis J, and maximum angle is 40 °.Dust gathering-device 203 can freely rotate in this scope, and if dust gathering-device 203 is not applied opposite power, it can also be moved in the gravity effect and descend the turned position most.

The opening 222d in the first dust collecting chamber 3a front is from the inner sealing of the first dust collecting chamber 3a, in order to avoid the cutting fragment that is collected in the first dust collecting chamber 3a is splashed to the outside, and prevents that the air that carries cutting fragment from leaking into the outside.The seal made from a felt 224 is wrapped in around the shaft 223a for this reason, so that it is along the continuous longitudinal extension in relative both sides of shaft 223a, and radially strides across and covers 223c.According to such connection, form a pair of wall 222e of portion, the inwall of each support slot 222c of itself and first outer wall 30 and intermediate bulkheads 31 continues.The 222e of wall portion has a basic arc-shaped cross-section separately.The a pair of wall 222e of portion upwards or with respect to the rotating shaft of shaft 223a faces with each other in the footpath of respective support groove 222c.The a pair of wall 222e of portion of first outer wall 30 and a pair of outer wall 222e of intermediate bulkheads 31 extend on the width of the first dust collecting chamber 3a toward each other, the terminal of the 222e of wall portion of the outer wall 30 of winning is closely contacted with the corresponding terminal of the 222e of wall portion of intermediate bulkheads 31 respectively, and can not form any tangible gap.Seal 224 sliding-contacts are to the bottom of these two couples of 222e of wall portion and receiving slit 222c, with the first dust collecting chamber 3a to outside seal.

In addition, the 222e of wall portion extends to a certain degree along the circumference of respective support groove 222c, makes the 222e of wall portion can not disturb the vertical rotation of the 223b of tube connector portion, and can not block the front of opening 222d on the flow direction of cutting fragment.Yet the 222e of wall portion has enough circumferential lengths and can contact with the 222e of wall portion in the whole vertical rotation scope of entrance member 223 or dust collection container 203 to guarantee seal 224.

The rotation restriction 223e of portion of corresponding the rotation restriction 33b of portion is formed on the shaft 223a, and suitably touches the circumferential edges of the 222e of wall portion, so that limit the slewing area of entrance member 223.

As shown in figure 29, a wind spring 228 is fixed on the bar 34a of lid 34, so as on opening direction normal bias lid 34.

A limited part 250 (referring to Figure 25-28) that is used to limit dust gathering-device 203 downward stroke end points is installed in jig arm 13c, and is used for from following support dust gathering-device 203.Preferably, limited part 250 is to make with the steel wire with suitable diameter.See that from above steel wire is bent into roughly inverted U-shaped, then have roughly to fall L shaped structure, thereby the top of limited part 250 is crossed jig arm 13c and extended in 203 times side's (in operating personnel's one side) inclinations forward-facing of dust gathering-device from laterally seeing.Utilize bolt 251 and 252 opposite ends to be fixed on the jig arm 13c with limited part 250.So just can make limited part 250 strain in vertical direction, make the top of limited part 250 change its angle of inclination with respect to the bottom.

A revolving part 253 is rotated the upper end that is fixed on limited part 250.Can make revolving part 253 with the steel wire that is wound on limited part 250 upper ends.So just can use limited part 250 resiliency supported dust gathering-devices 203, the lower surface of the lid 34 of dust gathering-device 203 touches the upper end of limited part 2250 by revolving part 253 simultaneously.As a result, dust gathering-device 203 just can slide on front and rear direction in response to moving both vertically of parts 201 of saw.Like this, just smooth motion in vertical direction of saw parts 10.

Represent embodiment according to the 6th, dust gathering-device 203 freely rotates with respect to saw parts 210 in maximum 45 scope.More specifically, dust gathering-device 203 can rotate maximum 5 ° of angles with respect to the longitudinal axis J of delivery pipe 20c, and can upwards rotate maximum 40 ° of angles with respect to longitudinal axis J.Therefore, when saw parts 210 were in upwards turned position shown in Figure 25 and 26, dust gathering-device 203 roughly was positioned at horizontal level, extend in these position lid 34 approximate horizontal, and with arm 13a and 13b almost parallel.On this horizontal level, collection container 203 is supported by limited part 250, and the lower surface of lid 34 contacts with the revolving part 253 that is arranged on limited part 250 upper ends simultaneously.

Delivery pipe 20c can rotate and move downward along with saw parts 210.Yet owing to entrance member 223 can rotate with respect to delivery pipe 20c, so dust collection container 203 can remain on horizontal level.

In addition shown in Figure 27 and 28, even saw parts 210 have turned to upper/lower positions, dust gathering-device 203 also can remain on horizontal level.So just slip bench saw 201 can be stored in the storage area, make following dust gathering-device 203 be in horizontal direction.Therefore, even in the limited storage area that has than low height, also can store slip bench saw 201.

In addition, according to this representative embodiment, how the upright position of no matter sawing parts 201 changes, and dust gathering-device 203 can both remain on the approximate horizontal position.Therefore, when dust gathering-device 203 is in horizontal direction, the central axis of separator main body 36 is extended in vertical direction, can pass through cyclone unit 3c separation cuts fragment effectively all the time by the position of setting cyclone unit 3c.

And, because dust gathering-device 203 is limited part 250 from following support, can prevent reliably that the arm 13a and the 13b of the dust gathering-device 203 and second slide plate 13 from influencing each other.So just can guarantee that saw parts 210 slide in the horizontal direction smoothly.

In addition, for limited part 250 is fixed on the jig arm 13c, be used for also can being used as bolt 251 and 252 at bolt with respect to the fixed-site jig arm 13c of arm 13a and 13b.Like this, just do not need extra bolt or extra mechanically actuated for fixed constraints part 250.

(the 6th represents may retrofiting of embodiment)

On behalf of embodiment, the described the 6th can revise by multiple mode.For example, although limited part 250 is mounted on the jig arm 13c in above-mentioned representative embodiment, limited part 250 also can be installed on another jig arm 13d (it supports saw parts 210), or is installed on the dust gathering-device 203.

According to above-mentioned representative embodiment, dust gathering-device 203 can rotate freely in the 45 slewing area, and can turn under the gravity effect and descend turned position (rotating the position at about 5 ° of angles with respect to the longitudinal axis J of delivery pipe 20c) most.Yet also can design like this, make the position of dust gathering-device 203 be maintained at precalculated position in the slewing area with respect to delivery pipe 20c or saw parts 210.Represent embodiment to describe this change embodiment hereinafter with reference to Figure 32 and 33 usefulness the 7th.

(the 7th represents embodiment)

With reference to Figure 32 and 33, dust gathering-device 255 has structure and is different from the 6th entrance member 256 representing the entrance member 223 of embodiment.Other structure and the 6th outside the entrance member 256 represents the dust gathering-device 203 of embodiment identical, therefore no longer repeat specification.

On behalf of the entrance member 256 of embodiment, the 7th a brake apparatus that is called as bulb stopper mechanism is arranged.This brake apparatus comprises coil compression springs 257, by the firm ball 258 of wind spring 257 towards the biasing of direction, and the fixed head 259 that a fixing hole 259a who meshes with just ball 258 is arranged.Coil compression springs 257 can be placed in receiver hole 256c that lid 256b go up to form in one of them.Lid 256 is closed the open right-hand member of cylindrical shape rotating part 256a.Receiver hole 256c does not extend fully through the thickness of lid 256b, and its bottom lock.Like this, just can be as the 6th 223b of tube connector portion that represents embodiment with respect to the inner space of the 256c of sealed joint pipe portion reliably, outside.Just ball 258 is maintained at an end of coil compression springs 257.Fixed head 259 is placed in the support slot 222c of intermediate bulkheads 31, is located at the bottom of the support slot 222c of 223b.Fixing hole 259a is configured to a slit of formation in the fixed head 259, and prolongs than short distance in a circumferential direction.

Form engaging groove 259b in fixed head 259, it is configured to the cutting groove that radially extends internally from the circumferential edges of fixed head 259.Form the engagement projections (not shown) on the bottom of support slot 222c, itself and engaging groove 259b mesh, thereby prevent that fixed head 259 from rotating with respect to support slot 222c.So just the right-hand member of shaft 256a rotatably can be contained in the support slot 222c, simultaneously fixed head 259 is inserted between the bottom of the right-hand member of shaft 256a and support slot 222c.The left end of shaft 256a is according to representing the identical mode of embodiment rotatably to be contained in the respective support groove 222c of formation in first outer wall 30 with the 6th.Equally, the 256c of tube connector portion is according to representing the identical mode of embodiment to be connected to the delivery pipe 20c of the lid 20 of saw parts 210 with the 6th.

Represent embodiment according to the 7th, just ball 258 bias force that is compressed wind spring 257 is pressed on the fixed head 259.As long as firm ball 258 not with fixed head 259a engagement, during with respect to saw parts 210 vertical rotation, fixed head 259 just can rotate with the lid 256c of dust gathering-device 255 with respect to shaft 256a at dust gathering-device 255.In other words, dust gathering-device 255 can be under the gravity effect vertical rotation freely.Yet when firm ball 258 is brought in the rotation process of dust gathering-device 255 when relative with fixing hole 259a, just ball 258 meshes with fixing hole 259a by the bias force of coil compression springs 257, can prevent that like this dust gathering-device 255 is rotated further.For this reason, the bias force of coil compression springs 257 is arranged to be enough to prevent that dust gathering-device 255 from overcoming gravity and rotating.

In this representative embodiment, just the position of the position of ball 258 and fixing hole 259 is to determine like this, when in the angle of rotation of dust gathering-device 255 is in 0 ° to 45 ° gamut and on 0 ° to 45 ° the whole slewing area, rotating in the about 15 ° scope of limit, make firm ball 258 and fixing hole 259 engagements.Like this, be rotated upper/lower positions or when upper/lower positions moved the position (for example shown in Figure 33 with a position in the slewing area of saw blade 14 cut workpiece W) of predetermined angular, just ball 258 can mesh with fixing hole 259 at saw parts 210.Therefore, dust gathering-device 255 can tilt like this, makes the rear portion (right part shown in Figure 33) of dust gathering-device 255 be positioned at the top with respect to the front portion.In other words, dust gathering-device 255 towards the place ahead (left shown in Figure 33) downward-sloping.In contrast, represent under the situation of embodiment the 6th, dust gathering-device 203 is positioned in horizontal level when saw parts 210 are in upper/lower positions, as shown in figure 27.

According to this set, it is downward-sloping that dust receiving apparatus 255 is held on the direction forward in cutting operation process.Like this, second outer wall 32 or the second dust collecting chamber 3b also can be downward-sloping on direction forward.Because cyclone unit 3c is positioned at second outer wall, 32 back, the cutting fragment that cyclone unit 3c discharges moves to the front portion of the second dust collecting chamber 3b (left part shown in Figure 33) under the gravity effect.In other words, cutting fragment can be collected in the front portion in the second dust collecting chamber 3b.So just can in the second dust collecting chamber 3b, collect cutting fragment effectively, and can not block the ingate 32a of the second dust collecting chamber 3b.The result just can improve the dust collection efficiency of dust gathering-device 255.

In order in the storage area, to store slip bench saw 201, operating personnel can be manually with the rear portion of dust gathering-device 255 from state shown in Figure 33 to pressing down.As a result, can overcome the bias force of coil compression springs 257, make firm ball 258 break away from fixing hole 259a, thereby make dust gathering-device 255 move to horizontal level.So just can store slip bench saw 201 by the total height that reduces slip bench saw 201.

As mentioned above, represent embodiment according to the 7th, when the angle of rotation of dust gathering-device 255 is in when rotating in the about 15 ° scope of limit apart from going up of 0 ° to 45 ° whole slewing area, dust container 255 can be temporarily fixed on the position with respect to saw parts 210.Like this, in cutting operation process, cutting fragment can be stored in the front portion of the second dust collecting chamber 3b, because the second dust collecting chamber 3b upwards is retained as downward-sloping forwards.The result just can improve the dust collection efficiency of dust gathering-device 255.

In addition, at saw parts 210 when being positioned at upper/lower positions, dust gathering-device 255 can also be moved to horizontal level from obliquity.Therefore,, slip bench saw 201 can be stored in the storage area, make the whole height of slip bench saw 201 compact more simultaneously according to representing the identical mode of embodiment with the 6th.

(the 6th and the 7th represent embodiment other may retrofit)

On behalf of embodiment, the 6th and the 7th various alter modes are arranged.For example, adopt the brake apparatus of the firm ball 258 of spring biasing and fixing hole 259 to come alternative with any other device of the turned position of temporary fixed dust gathering-device 255.The pin of for example can be with fastening bolt or removably being inserted in the corresponding pin joint batter substitutes this brake apparatus.

In addition, on behalf of the structure of relevant pivot motion in the dust container 203 and 255, the 6th and the 7th among the embodiment to be applied to the dust gathering-device of other type, for example do not have the cyclone unit 3c and the second dust collecting chamber 3b and the dust gathering-device of the first dust collecting chamber 3a only arranged, or such as having fabric dust collecting bag and being used for fixing the sort of dust gathering-device of the framework of bag.

And although the 6th and the 7th to represent the dust container of embodiment be that combined type portable slip saw is described, this dust container also can be used in combination with the cutter sweep of any other type, for example hard-wired cutter sweep.

(the 8th represents embodiment)

Describe the 8th hereinafter with reference to Figure 34 to 42 and represent embodiment.On behalf of embodiment and the 6th, the 8th represent embodiment substantially the same.Yet add the 8th embodiment is in order to illustrate that on behalf of embodiment or other, the 6th represent the special characteristic that does not clearly demonstrate among the embodiment.In Figure 34 to 42, represent similar parts for this reason, and no longer be repeated in this description these parts with identical label.

But below will be about representing different structure of embodiment and in fact in front some to represent to have existed among the embodiment not have specifically described special characteristic, describe the 8th and represent embodiment with the 6th.

With reference to Figure 34 to 37, on behalf of the slip bench saw 301 of embodiment, the 8th comprise saw parts 310 and dust gathering-device 303.As representing embodiment described (referring to Fig. 1) in conjunction with first, tumbler 12b laterally is installed on the sliding part 12a rotatably by axle 12d, thereby tumbler 12b can lateral rotation.In addition, handle 12e is installed on the sliding part 12a, so that tumbler 12b is fixed on required rotational angle with respect to sliding part 12a, carries out cutting operation so that can use with respect to the saw blade 14 and the saw parts 2 of rotating disk 11 lateral inclinations.Represent slip bench saw 301 neutralization second to the 7th of embodiment to represent in the disclosed bench saw of embodiment the 8th and also comprise these features.

More specifically, tumbler 12b can rotate saw parts 310 on left and right direction.Yet generally, most of operating personnel belong to the people of right-hand operated.Therefore, operating personnel can hold handle 24a and workpiece W are placed into naturally the left side of rotating disk 11 with the right hand.In addition, because motor 12 is the right sides that are positioned at lid 20, easier left side rather than the right side of seeing saw parts 310d of operating personnel.Therefore, operating personnel's saw parts 310 (for direction of operating) that turn left usually, and will saw parts 310 by operating handle 12e and be fixed on required turned position.

With reference to Figure 34, first outer wall 30 that limits the first dust collecting chamber 3a of dust gathering-device 303 prolongs towards front and rear direction (the left and right direction among Figure 34), and has structure roughly triangular in shape from laterally looking.In other words, the first dust collecting chamber 3a is the same with first outer wall 30 to have streamlined configuration, and height increases on backward directions gradually.

Shown in Figure 38 and 39, (upside of seeing among Figure 39) has a 30i of extending transversely portion to first outer wall 30 in the left side shown in Figure 38, and extends to the rear end of first outer wall 30 from approximate centre part position.Intermediate bulkheads 31 extends to corresponding the position of first outer wall, 30 rear ends from the position that correspondence first outer wall, 30 approximate centre positions.Therefore, dust gathering-device 303 has narrower width 30m in the front or the side of entrance member 223.Like this, operating personnel just can stablize and control dust gathering-device 303 by holding the front portion with narrower width 30m, and are easy to carry out being connected and opening operation of delivery pipe 20c of dust gathering-device 303 and saw parts 310.

In addition, as shown in figure 40, the first dust collecting chamber 3a defines rear end surface 30g.The cutting fragment that provides from the front side can clash into this rear end surface 30g.Outlet opening 31c is formed in the intermediate bulkheads 31 that is arranged on first outer wall, 30 right sides, and there is preset distance its position apart from rear end surface 30g, the chance that directly enters outlet opening 31 with the cutting fragment of avoiding or minimize strenuous exercise after bump rear end surface 30g.That is to say, between outlet opening 31c and rear end surface 30g, guarantee a space 3h, so as before cutting fragment to arrive outlet opening 31c the cutting fragment stream of buffering collision of closed and bounce-back.So just cutting fragment can be collected in effectively in the first dust collecting chamber 3a.

Shown in Figure 34 and 35, at first outer wall 30 of the left surface that limits dust gathering-device 303 be exposed to the outside and limit the part place of intermediate bulkheads 31 of the right flank of dust gathering-device 303, form finger engaging groove 3j and 3k respectively.The top edge of close respectively first outer wall 30 in the position of finger engaging groove 3j and 3k and intermediate bulkheads 31, and along corresponding top edge extension.More specifically, the medium position correspondence of finger engaging groove 3j and 3k the position of centre of gravity of dust gathering-device 303.Like this, after 310 dismountings of saw parts, operating personnel can hold dust gathering-device 303 with one hand by cooperating with finger engaging groove 3j and 3k with finger under poised state.

As shown in figure 40, the cyclone main body 36 of cyclone unit 3c is such location, makes the forefront of cyclone main body 36 and front portion that decline is not positioned at rough alignment outlet opening 31c and the rear end of first outer wall 30 and intermediate bulkheads 31 (this first outer wall 30 and intermediate bulkheads 31 define the rear end surface 3g of the first dust collecting chamber 3a).Because first outer wall 30 and intermediate bulkheads 31 have maximum height in its back-end, cyclone main body 36 can be located like this, and it is big apart from (referring to Figure 36) to make it not extend up to the top, rear end that surpasses first outer wall 30 and intermediate bulkheads 31.So just can guarantee has than large space below the cyclone main body 36, so that increase the cutting fragment capacity in the second dust collecting chamber 3b.

Hereinafter with reference to described special characteristic the 8th operation of representing embodiment is described.At first will with first outer wall 30, intermediate bulkheads 31 and second outer wall, 32 integrant cyclone unit 3c are arranged on the right side of intermediate bulkheads 31.Therefore, in order to use saw blade 14 cut workpiece (inclined cut operation) with respect to the workpiece inclination, when saw parts 310 were turned left from the upright position with respect to rotating disk 11, the right side of intermediate bulkheads 31 can upwards be changeed together along with cyclone unit 3c, shown in Figure 41 and 42.

Like this, in inclined cut operation, cyclone unit 3c can be positioned at the intermediate bulkheads 31 or the first dust collecting chamber 3a above.So just can prevent to be collected in the cutting fragment in the first dust collecting chamber 3a and/or under the gravity effect, flow into cyclone unit 3c once in a while from the cutting fragment that shell 20 is admitted to the first dust collecting chamber 3a.Therefore can improve the dust collection efficiency.

Secondly, shown in Figure 36 and 40, the cutting fragment that enters previously from the first dust collecting chamber 3a can strike the end surfaces 30g of the first dust collecting chamber 3a.Owing to guarantee to have a space 3h between outlet opening 31c and end surfaces 30g, the violent cutting fragment stream that flows that causes because of bump can directly not enter outlet opening 31c.So just cutting fragment can be collected in effectively in the first dust collecting chamber 3a, thereby improve the dust collection efficiency.

The three, the first dust collecting chamber 3a is fairshaped, and upwards has the vertical height that increases gradually towards the rear.In other words, the vertical cross-section area of the first dust collecting chamber 3a is towards the rear to increase.Like this, the air pressure that is blown into the carrying air of the first dust collecting chamber 3a will reduce towards the rear gradually, and can turbulization, thereby the flow velocity of carrying air reduces gradually.As a result, the flow velocity that is carried the cutting fragment that air carries also can reduce gradually.Massive cutting fragment is fallen in the first dust collecting chamber 3a effectively, thereby improve the dust collection efficiency.

Although above feature is described in conjunction with the slip bench saw, these features also can be applied to dissimilar bench saws.For example, although above feature is to describe in conjunction with the bench saw that can turn left and right, these features only also can be applied to can be left or the bench saw that only can turn right.If in the bench saw that only can turn right, the cyclone unit preferably is positioned at the left side of dust gathering-device with described feature application, make the cyclone unit in the inclined cut operating process, be positioned at the upside of the first dust collecting chamber.In addition, can describe with respect to the dust gathering-device of saw parts vertical rotation although above feature is combination, these features also can be applied to be in respect to the saw parts dust gathering-device of fixed position.

Claims (5)

1. cutter sweep comprises:

Pedestal (10);

Tool component (2,102), it comprises saw blade (14), this saw blade drives rotation by motor (22);

Sliding part (13) moves with respect to this pedestal (10) slidably;

The dust gathering-device, it comprise separator (4,3c) and the dust container (5,6,3b);

Wherein, and this separator (4,3c) be set up and be configured to gravity by utilizing cutting fragment at least with at least a portion cutting fragment and carrying air separation; And

Wherein this separator (4,3a) comprising: separator main body (40,36), its have the cutting chip discharge pipe that the cutting fragment that will separate discharges from this separator main body (40,36) (42,36d); And blast pipe (43,37), be used for the carrying air after separating is discharged from this separator main body (40,36); And

Wherein, this dust container (5,6,3b) be connected to this cutting chip discharge pipe (42,36d), and be set up and be configured to collect by separator (4,3c) described at least a portion cutting fragment of Fen Liing;

It is characterized in that,

This separator (4,3c) and the dust container (5,6,3b) removably be installed to described sliding part (13).

2. according to the described cutter sweep of claim 1,

Wherein this separator main body (40,36) have an inlet tube (41,36c), make the entrained cutting fragment of carrying air by this inlet tube (41,36c) be provided to this separator main body (40,36);

Wherein this separator main body (40,36) has an inwall and a central axis; And

This inlet tube (41 wherein, this separator main body (40 of position deviation 36c), 36) central axis, make by this inlet tube (41,36c) be provided to this separator main body (40,36) cutting fragment at least under the gravity effect towards this cutting chip discharge pipe (42,36d) move, simultaneously, described cutting fragment is at this separator main body (40,36) inwall along this separator main body (40,36) in rotates in a circumferential direction.

3. according to claim 1 or 2 described cutter sweeps, this cutter sweep also comprises:

Lid (20), it is set up and is configured to cover this saw blade (14); And

Conduit (3), it is connected between this lid (20) and this dust gathering-device, makes the cutting fragment that is produced by this saw blade (14) be sent to this dust gathering-device from this lid (20) via this conduit (3) with the carrying air.

4. according to the described cutter sweep of claim 3, wherein Xuan Zhuan saw blade (14) produces carrying air stream, and this carrying air stream is blown into this conduit (3) together with the cutting fragment that this saw blade (14) produces via this lid (20).

5. according to the described cutter sweep of claim 1, it also comprises:

Fan, it is set up and is configured to produce and is used to cool off the air-flow of this motor (22); And

Suction pipe (7), it is connected between the blast pipe (43) of the upstream side of this fan and this separator main body (40).

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