Abstract: A miter saw including a base, a turntable, a support section extending from the turntable, and a circular saw unit supported to the support section. A rotation amount detection unit detects rotation amount of the turntable relative to the base. The turntable has a tilt support, and the support section has a tilting section supporting the circular saw unit and supported to the tilt support. A tilting amount detection unit detects tilting amount of the tilting section relative to the tilt support. The turntable has a microcomputer computing a rotation angle of the turntable and tilting angle of the circular saw unit, and a RAM storing the detected rotation amount and the tilting amount installed therein. A battery unit is provided in the turntable for supplying electrical power to electronic components including the rotation amount detection unit, the tilting amount detection unit, and the microcomputer.

Abstract: A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to retract the blade from the cutting zone.

Abstract: An improved health and safety system for a table saw includes one or more of: a blade guard that protects the operator from the saw blade, and contains and collects sawdust; a proximity detector and emergency saw motor braking means for use in connection with such blade guard; an anti-kickback device for use in connection with such blade guard, a rip fence adapter for use in connection with such a blade guard, and hoses and fittings to connect the dust containment and collection system of said blade guard to a shop dust collection blower or vacuum system. The system protects the saw operator from potential traumatic injury to a hand, and from ingesting potentially carcinogenic sawdust.

Abstract: A cutting tool has a table for placing a workpiece thereon. A cutting unit is mounted to the table. A support leg device includes a support leg, an operation member and a motion conversion mechanism. The motion conversion mechanism is coupled between the support leg and the operation member, so that the movement of the operation member is converted into the movement of the support leg.

Abstract: A saw with a base assembly, a table pivotably attached to the base assembly, a housing pivotably attached to the table, at least one rail slidably connected to the housing, and a saw assembly disposed on the at least one rail. The saw assembly includes a motor, and a blade driven by the motor. The saw also includes a dust collector attached to the saw assembly, the dust collector having a tube that extends through the housing.

Abstract: A power tool includes a base, a table supported by the base for pivoting movement about an axis, a coarse adjustment assembly between the base and the table, and a fine adjustment assembly between the base and the table. The fine adjustment assembly includes a rotating member supported by one of the base and the table, and an engagement surface provided by the other of the base and the table. The rotating member is selectively engageable with and rotatable along the engagement surface to finely adjust the angular position of the table relative to the base. The angular position of the table relative to the base is coarsely adjustable using the coarse adjustment assembly when the rotating member is disengaged from the engagement surface. The fine adjustment assembly disengages the coarse adjustment assembly and maintains the coarse adjustment assembly disengaged when the rotating member is engaged with the engagement surface.

Abstract: Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating, to create an impulse against movement of the blade into the cutting zone, or to cause the blade to move away from the cutting zone. The reaction system may include a brake member coupled to a housing.

Abstract: A miter saw including a base, a turntable, a support section extending from the turntable, and a circular saw unit supported to the support section. An adjustment mechanism is provided between the base and the turntable for performing fine-adjustment to the rotation angle of the turntable relative to the base. The adjustment mechanism is located at a front side of the turntable, and a digital display is provided near the adjustment mechanism for displaying the rotation angle.

Abstract: A miter saw includes a base, a rotatable table, a saw arm, a driver, a saw blade, and two supporters. The rotatable table is pivotally mounted to the base and is rotatable relative to the base. The rotatable table includes a support surface configured to receive a workpiece thereon. The saw arm is coupled to the rotatable table and is pivotable downwards towards the support surface. The driver is mounted on the saw arm. The saw blade is mounted on the saw arm and is driven by the driver to cut the workpiece. The two supporters are respectively pivotally mounted to the rotatable table and are configured to support the workpiece thereon while in a supporting position, and to be pivoted to an unobtrusive stowed position when not in use.

Abstract: A cutting machine includes a main body in which a rotary blade is included, a base over which a workpiece is to be placed, and a guide fence mountable to the base. The main body is provided above the base in such a manner that the main body is movable upward and downward, and a longitudinal direction of the guide fence is perpendicular to the rotary blade as viewed from top when the guide fence is mounted to the base. The guide fence provides a guide surface that extends in the longitudinal direction of the guide fence and is configured to be rendered perpendicular to a top face of the base when the guide fence is mounted to the base. The guide fence includes a stopper that is configured to project from the guide surface, to be movable upward and downward, and to be fixed at any level.

Abstract: A desk-top cutting machine which includes a base that supports a wood material W and a turntable that has a rotating shaft part and is carried and supported on the base rotatably around the rotating shaft part. The desk-top cutting machine further includes a cutting part having a swinging shaft part. The cutting part is disposed on the turntable and supports a cutting blade, and swings the cutting blade approachably to and separably from the turntable. The desk-top cutting machine further includes a scale part and an indicator part which display a rotary angle of the turntable with the base, and an irradiation unit near the indicator part emitting light that illuminates the indicator part.

Abstract: Woodworking machines are disclosed having electrically conductive cutting tools adapted to cut workpieces. The machines include a contact detection system capacitively coupled to the cutting tool, and adapted to detect contact between a person and the cutting tool. The machines also include a reaction system configured to cause one or more predetermined actions to take place upon detection of contact between a person and the cutting tool by the contact detection system.

Abstract: A miter saw for cutting a workpiece is disclosed. The miter saw has a base section, a holder section, a saw blade section, a saw blade support section, and a guide bar. The base section has an upper surface for supporting a workpiece to be cut. The holder section stands from the base portion. The saw blade section has a circular saw blade for cutting the workpiece. The saw blade support section pivotably supports the saw blade section. The guide bar slidably supports the saw blade support section. The guide bar is slidably supported by the holder section. The guide bar extends substantially parallel to the upper surface of the base section. The saw blade support portion is slidable along the guide bar.

Abstract: A table saw includes a curved channel formed in a supporting base, a cradle attached to the supporting base, an arbor bracket attached to the cradle for supporting a saw blade and a motor, a height shaft attached to the cradle and extended through the curved channel of the base for engaging with the arbor bracket, a tilt shaft attached to the base and engaged with the cradle for adjusting the saw blade relative to the base to selected angular positions, a follower slidably engaged in the curved channel of the base, and a signal generating device attached to the follower for detecting a bevel angle of the arbor bracket and the cradle and the saw blade relative to the base and for precisely showing the angle with digits.

Abstract: A miter saw having a base assembly, a rotatable table rotatably disposed on the base assembly, and a saw assembly rotatably supported by the table. The miter saw also has a miter lock assembly for locking the rotational position of the saw of the table relative to the base assembly.

Abstract: Woodworking machines are disclosed having cutting tools adapted to cut workpieces. The machines include a safety system adapted to detect one or more dangerous conditions between a person and the cutting tool, and to stop movement of the cutting tool upon detection of the dangerous condition. At least part of the safety system is housed in a removable cartridge substantially sealed against entry of sawdust.

Abstract: A miter saw has a base assembly, a table assembly rotatably disposed on the base assembly, a support housing connected to the table assembly, and a saw assembly pivotably attached to the support housing. The saw assembly is pivotable downwardly for cutting a workpiece disposed on the table assembly. The saw has a miter lock assembly including a shoe assembly connected to the table housing and movable between a first position not contacting the base assembly and a second position contacting the base assembly. The shoe assembly has a movable shoe for adjusting the angular position of the table assembly relative to the base assembly.

Abstract: An optical system mounted on a cutter that has a base and a housing supporting a blade. In one embodiment, the optical system may project first and second indicator lines on the base. The optical system may also include a mechanism selectively operable to adjust the first and second lines to indicate the width of the blade.

Abstract: Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable.

Abstract: A table saw having an adjustable blade, a detection system to detect contact between a person and the blade, and a brake mechanism to engage and stop the blade upon detection of contact between the person and the blade is disclosed. The saw includes a brake positioning system that adjusts the position of the brake mechanism to maintain the brake mechanism in an operative position relative to the blade as the position of the blade is adjusted. The saw also may include a retraction system that urges the blade downward, away from a user, upon detection of contact between a person and the blade. The retraction system may include a releasable gear. The saw may be constructed so that the blade is adjustable up and down around a pivot point downstream of the blade relative to the feed direction.

Abstract: A miter saw which prevents deterioration in perpendicularity of a cutting blade to the upper surface of a base part when slide of a pipe is regulated by pressing a pipe. In a miter saw, a pair of pipes support a cutting part, on one end side. On the other end side, the pipes are surrounded and supported slidably by a first slide support part of a support member of a turntable. A virtual plane including the axes of the pair of pipes is substantially parallel to the pivotal direction of a disc saw blade. A first screw is screwed in the first slide support part. An end part of the first screw contacts and presses a pipe. This end part is engaged with the pipe so as to restrict slide of the pipe relative to the first slide support part.

Abstract: A dust-collecting device for collecting cutting chips produced by a cutting device has a separator for separating the cutting chips from the carrier air by utilizing the force of gravity upon the cutting chips. A dust container collects the cutting chips separated by the separator. The separator includes a separator body having a cutting chip discharge pipe and an air discharge pipe. After separation the carrier air is discharged upward from the separator body via the air discharge pipe. The separated cutting chips are discharge downward from the separator body via the cutting chip discharge pipe. The dust container is connected to the cutting chip discharge pipe.

Abstract: The cut-off machine (2) of the present invention includes an engine block (3) for driving via a belt (5) a cutting disk (6) attached to a disk carrier (7), an axis sheath (8) parallel to the axis of the cutting disk and to be secured on a bearing and guiding device of the cut-off machine, including a clamp for fixation to the rail and permitting the pivoting of the cut-off machine in the plane of the cutting disk, characterised in that the sheath and the disc carrier define a single block (9) mounted on the engine block (3) with elastic means provided in-between.

Abstract: An angular adjustment apparatus for a miter saw having a base and a turntable mounted to the base and rotatable around a generally centrally located axis, the turntable having a handle portion for rotating the turntable relative to the base. The apparatus includes an arcuate rack gear positioned on the base, and an elongated adjustment mechanism associated with the handle portion. The adjustment mechanism includes a pinion gear configured to engage the rack gear when brought into contact therewith, and a control wheel operatively connected to the pinion gear. The control wheel is rotatable around an axis concentric with the pinion gear and moveable along the concentric axis to cause the pinion gear to selectively engage and disengage the rack gear, wherein rotation of the control wheel while the pinion gear is engaged with the rack gear causes the turntable to rotate relative to the base.

Abstract: Embodiments are directed to a power compound miter saw having miter angle as well as bevel angle adjustment capabilities, with sensing units that can measure the angular position of the miter table relative to the base as well as the bevel angle of the blade relative to the table. Such sensing units generate position signals that can be used to provide a digital display of the miter and bevel angles to a high degree of accuracy. Moreover, the embodiments utilize mechanisms which enable a user to tighten the pivot connections of the table and the base as well as the pivot connection between the table and the bevel pivot support housing without damaging the sensing units. The sensing units are configured and mounted in such a way as to not interfere with access to the nut which can be rotated to vary the amount of friction between the adjacent components.

Abstract: Safety systems for power equipment and components and brake cartridges for use in those safety systems are disclosed. The safety systems, components and brake cartridges are specifically applicable for woodworking equipment such as saws. An exemplary brake cartridge includes a housing and a braking component configured to engage a moving part of the power tool upon occurrence of a predetermined event. The brake cartridge may further include a switch configured so that proper installation of the cartridge in the power tool triggers the switch.

Abstract: A miter saw has a base, a turntable, a cutting unit, and a support unit. The base supports a workpiece thereon. The base has an rotation center. The turntable is supported by the base and rotatable about the rotation center. The cutting unit rotatably supports a saw blade. The support unit is provided to the turntable for pivotally movably supporting the cutting unit over the turntable. The turntable has: a main body and an extension member. The main body is provided with an outer periphery and an upper surface having an imaginary line onto which the saw blade is pivoted down. The extension member extends outwardly from the outer periphery in a first direction of the imaginary line for rotating the main body. The extension member is movable with respect to the main body.

Abstract: Power equipment with various safety systems is disclosed. Table saws with safety systems and/or blade retraction are disclosed. Over-molded arbors are disclosed, including arbors with prepreg over-molding. An electrically non-conductive material may be disposed to electrically insulate the arbor. The electrically non-conductive material may be made from fiber organized into a pattern.

Abstract: A saw is disclosed having a detection system adapted to detect a dangerous condition between a person and a saw blade, and a brake adapted to stop the saw blade in response to detection of the dangerous condition. The saw further includes a brake positioning system that allows the brake to be positioned in at least two different operable positions to accommodate at least two different blade diameters. The saw may include a system to detect brake-to-blade spacing.

Abstract: The present invention provides a plunge-cut action circular saw having a double pivot hinge mechanism. Problems associated with this hinge mechanism, in particular axial end flow are reduced by urging a component of the hinge against a fixed component of the saw, such as a base plate component or the like. The urging force is applied by a resilient member, such as a spring washer.

Abstract: A cutting table arrangement for profiled sections to be joined at a predetermined angular position at miter cuts. The cutting table arrangement has a cutting table, an angle-adjustable cutting device arranged on the cutting table, a first holding device arranged on the cutting table for holding a first straight profiled section in alignment with the first cutting device, and at least one second holding device for a second profiled section that is to be secured in a predetermined position and at a predetermined angle relative to the first profiled section on the cutting table. A first marking aid is provided at the first holding device for providing an aligned lateral extension toward the second profiled section. A second marking aid is provided for indicating the cutting line correlated to the first cutting device.

Abstract: A miter saw including a base, a table rotatably attached to the base, a saw assembly movable between a front position and a rear position, and a fence assembly attached to the base, the fence assembly including a fixed fence fixedly attached to the base, a movable fence movably connected to the fixed fence, the movable fence defining a first support plane, and an auxiliary fence disposed behind at least one of the fixed fence and the movable fence, the auxiliary fence defining a second support plane substantially parallel to the first support plane.

Abstract: A power tool includes a housing assembly having a housing portion and an arm extending upwardly from the housing portion. The arm has an outer surface. The power tool also includes a drive unit supported by the arm. The drive unit is operable to drive a tool element to work on a work piece. The power tool further includes a collection assembly operable to collect debris generated by the tool element working on the work piece. The collection assembly includes a collection chute assembly having an inlet and an outlet. The collection chute assembly is positionable on the arm to define, between the inlet and the outlet, a first path for debris around one side of the outer surface of the arm and a second path for debris around the other side of the outer surface of the arm.

Abstract: A saw, such as a chop saw, a miter saw, a sliding saw, a compound miter saw, etc. In some constructions, the saw may include a miter adjustment assembly including a coarse adjustment assembly and a fine adjustment assembly. In some constructions, the saw may include a bevel adjustment assembly including a brake mechanism and a bevel detent assembly. In some constructions, the saw may include a dust collection assembly including a dust chute defining a dust both around the bevel arm. In some constructions, the saw may include a table having a top wall with a peripheral rim and a side wall depending from the top wall, and a base defining an opening in which the side wall is received and a ledge above which the rim is positioned. In some constructions, the saw may include elastomeric material covering a portion of the base, such as a bottom surface, a lateral surface, a grip surface, etc.

Abstract: A saw having a table assembly, a pivot arm, a saw blade and a dust collection system. The table assembly includes a workpiece support surface upon which a workpiece can be supported. The pivot arm is pivotally mounted to the table assembly, and includes a driver and a dust collection passage. The saw blade is mounted on the pivot arm and is driven by the driver for cutting the workpiece. The dust collection system includes a groove having one end which connects to the table assembly, and another end extending to the dust collection passage. Sawdust and/or chips generated during the cutting operation are transferred to the dust collection passage along the groove and are discharged out of the saw.

Abstract: A miter saw having a securable positioning structure for a blade guard thereof includes a saw blade, a rotatable handle, a movable blade guard, a control unit, a positioning unit, and a rope. The rotatable handle is provided for the user's holding for the cutting operation. The movable blade guard is shiftable between where it covers the saw blade and where it does not cover the saw blade. The control unit is mounted to the rotatable handle. The positioning unit is provided for blocking the movement of the movable blade guard. The rope is connected with the control unit and the positioning unit. Accordingly, the user only needs to operate the control unit to drive action of the positioning unit via the rope to hold the movable blade guard in position, thus securing the safety of the operation. In addition, the rotatable handle can be turned smoothly without any barrier.

Abstract: A miter saw having a cutting portion movable toward and away from a base and laterally tiltable for bevel cutting. A gear case is provided at the cutting portion and is positioned at one lateral side of the cutting portion. A bearing holder is provided in the gear case for holding a bearing which rotatably supports a spindle for a circular saw blade. The bearing holder has a thickness smaller than an axial length of the bearing. A first bearing nip member in contact with one axial end of the bearing is fixed to one side of the bearing holder, and a second bearing nip member in contact with another axial end of the bearing is fixed to another side of the bearing holder. These nip members are made from a material having a mechanical strength higher than that of the bearing holder.

Abstract: An electric miter saw includes a base, a cutting table, a cutting member and a link arm. The cutting table is mounted on the base. The upper portion of the link arm is connected to a cutting member with the cutting saw blade driven by a motor. The lower portion of the link arm is connected to the upper portion of a supporting member and secured by a threaded central bolt. The linear ball bearing is mounted in the inner aperture of the supporting member, which is slidably connected to the slide rod by a linear ball bearing. At the outer end of the slide rod is mounted a position limit socket. The inner end of the slide rod is connected and secured beneath the cutting table via a releasable securing configuration mentioned above. A flexible blade guard is also provided.

Abstract: Power tool includes a movable blade and a detection system for detecting contact between the blade and an object. Detection system includes an excitation plate capacitively coupling the drive signal to the movable blade. A circuit generates an in phase component signal and a quadrature component signal from a blade current signal indicative of the instantaneous current drawn by the movable blade and calculates an energy of the blade current signal considering the in-phase and the quadrature components. The circuit compares the energy of the blade current signal to an adaptive trigger threshold to detect contact between the blade and the object based on whether the energy of the blade current signal is greater than the adaptive trigger threshold.

Abstract: A miter saw includes a base section on which a workpiece is mounted, a saw blade section supporting a circular saw blade having a rotation axis extending in a lateral direction, a holder shaft extending in a direction perpendicular to the rotation axis, a holder tiltable about the holder shaft, two parallel guide bars disposed slidable with respect to the holder and extending toward the rotation axis, a support segment fixed to the guide bars and supporting the saw blade section, a pivot shaft disposed between the saw blade section and the support segment and extending in parallel with the rotation axis so that the saw blade section is pivotable about the pivot shaft, and a holder fixing mechanism that fixes a tilting posture of the holder and includes an operation member supported to the holder and having a rotatable shaft passing through a space between the two guide bars.

Abstract: A miter saw is disclosed having a base, a blade supported by the base, a detection system adapted to detect contact between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating.

Abstract: Miter saws are disclosed having a base, a blade supported by the base, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system associated with the detection system to cause a predetermined action to take place upon detection of the dangerous condition. The blade is rotatable, and moves into a cutting zone to cut a workpiece. The predetermined action may be to stop the blade from rotating, to create an impulse against movement of the blade into the cutting zone, or to cause the blade to move away from the cutting zone.

Abstract: The present invention relates to a miter saw which includes a turntable, an elongate coupling mechanism pivotally mounted with respect to the turntable about a bevel axis to adjust to a bevel angle and a saw unit pivotally connected to the elongate coupling mechanism for movement between a non-cutting position and a cutting position. An angle enlarging mechanism is disposed between the turntable and the elongate coupling mechanism which is used for conveniently reading the bevel angle.

Abstract: A miter saw including a base, a turntable, and a circular saw unit supported to the turntable. A turntable is rotatable about its axis, and a rotation limit mechanism is provided for limiting rotation of the turntable at a predetermined angle such as 45 degrees. A rotation amount detection unit is provided for detecting rotation amount of the turntable. A control unit is provided for displaying the rotation angle at a display. The control unit computes correction value that makes a rotation angle to be displayed at the display to be coincident with the predetermined rotation angle when the turntable is rotated to the predetermined rotation angle. The rotation angle is computed based on the correction value and on the rotation amount detected by the rotation amount detection unit.

Abstract: A miter saw having a holder fixing mechanism for fixing a pivot posture of a holder. The holder supports a support section on which a saw blade section is pivotally movably supported. The holder is laterally pivotally movable about a holder shaft to change angle of a side surface of a circular saw blade relative to an upper surface of a base. The holder fixing mechanism includes a clamp bolt whose axis is directed perpendicular to the holder shaft and in parallel with the side surface of the circular saw blade. By the rotation of the clamp bolt about its axis, a fixing relationship between the holder and the base section is established.

Abstract: Brake pawls for use in safety systems for power equipment are disclosed. The brake pawls include an energy-absorbing region. The energy absorbing regions may include a deformable or collapsible region made from apertures in the brake pawl or from collapsible members or from materials of differing hardnesses, strengths, or structures.

Abstract: A machine such as a saw, jointer, planer, etc. is disclosed. The machine has cutting tool, a direct drive mechanism configured to move the cutting tool, a detection system adapted to detect the occurrence of an unsafe condition between a person and the cutting tool, and a reaction system adapted to mitigate the unsafe condition upon the detection of the unsafe condition by the detection system. An electrical signal is imparted on the cutting tool, and the signal is used to determine the occurrence of the unsafe condition. The direct drive mechanism is electrically isolated so that the electric signal may be imparted on the cutting tool. The electric isolation may be achieved through configurations such as insulated bearings, a substantially non-conductive housing, and a substantially non-conductive coupling joining two shaft portions.

Abstract: Woodworking machines are disclosed having electrically conductive cutting tools adapted to cut workpieces. The machines include a contact detection system capacitively coupled to the cutting tool, and adapted to detect contact between a person and the cutting tool. The machines also include a reaction system configured to cause one or more predetermined actions to take place upon detection of contact between a person and the cutting tool by the contact detection system.

Abstract: A miter saw. The saw includes a base on which a scale disk is connected and a bench is rotatably connected on the disk. An angle position device is connected to the bench. Notches are defined in an underside of the scale disk and the angle position device is engaged with one of the notches. A position member is movably connected to the body of the angle position device and a lever is connected to the position member which is pushed to contact a periphery of the scale disk to position the scale disk. A connection member is connected to the bench and a circuit saw assembly is pivotally connected to the connection member. A handle on the circular saw assembly can be pulled out and rotated to adjust an angle thereof.

Abstract: A cutting device includes a base, a swivel seat rotatably mounted on the base and having a first end and a second end, and a blade holder releasably engaged with the second end of the swivel seat. A blade is rotatably held by the blade holder. The blade holder is pivotable relative to the swivel seat for cutting when the blade holder is engaged with the second end of the swivel seat. An inclination of the blade relative to the swivel seat is adjustable when the blade holder is disengaged from the second end of the swivel seat. An operative rod is mounted to the first end of the swivel seat and operably connected to the blade holder for controlling releasable engagement between the blade holder and the swivel seat.