286results about "Portable power driven saws" patented technology

A circular saw includes a blade guard and a saw blade at least partially enclosed within the blade guard. The saw blade has an outer diameter that is greater than 6 inches. The circular saw further includes a motor housing coupled to the blade guard, a brushless electric motor supported within the motor housing, and a battery pack for providing power to the brushless electric motor.

A guided circular saw system having a track and a ramp that is connected to a benchtop by a pair of hinge members. Hinge members are formed of a top section, a middle section and a bottom section and facilitate raising and lowering of the track in a quick and easy manner without tools. The track is raised to facilitate placing a workpiece under the track and then the track is lowered in place thereby engaging and holding the workpiece in place. A sled attached to a cutting device and the sled and cutting device slides along the track thereby cutting the workpiece. The track includes sacrificial grip strips that extend along the sides of the track and include an upper layer of material that is rigid and a lower layer of material that is compressible and has a high coefficient of friction and thereby holds the workpiece in place.

A track saw assembly is provided including a track saw (i.e., a circular saw) having a shoe translatable upon a track. Various mechanisms control plunging of a saw unit and saw blade of the track saw relative to the shoe. For example, a plunge lockout mechanism is provided to prevent engagement of a trigger and prevent movement of a plunge mechanism. Various mechanisms control bevel angle adjustment of the saw unit relative to the shoe. For example, a linkage is provided and is operable to shift between a first position and a second position. In the first position, a bevel angle is restricted within a first bevel angle range. In the second position, the bevel angle is restricted within an expanded second bevel angle range. Other concepts relate to the interface between the shoe and the track and a clamp which secures the track to a workpiece.

A metalworking portable cutting machine has a lid for an outlet of a dust collector box with improved operability. A metalworking portable cutting machine includes a cutting machine body including a blade, and a dust collector box to collect a chip resulting from cutting. The dust collector box includes an outlet to discharge the chip, and a lid to open or close the outlet. The lid includes a heat dissipater on a part of a surface of the lid.

The utility model discloses a handheld primary and secondary saw which comprises a first supporting plate, two pairs of first supporting columns are arranged on the first supporting plate, a second supporting plate is installed on the two pairs of first supporting columns in a sliding mode, a first motor is arranged on the upper wall face of the second supporting plate, a primary saw blade is arranged at the driving end of the first motor, and a secondary saw blade is arranged at the driving end of the primary saw blade. A lifting bin is arranged on the second supporting plate, a second motor is arranged on the lifting bin, a gear is arranged at the driving end of the second motor, a groove is formed in the lifting bin, the gear is rotationally arranged in the groove of the lifting bin, a rack is arranged on the first supporting plate, and the gear is meshed with the rack. The utility model relates to the technical field of wood processing, and the dust removal mechanism can collect sawdust splashed during wood processing, prevent the sawdust from being inhaled into lungs by workers, prevent the workers from suffering from pneumoconiosis, and guarantee the body health of the workers.

A rotary cutting tool includes a battery pack receptacle, a handle, a motor, a cutting wheel driven by the motor, a blade guard surrounding the cutting wheel and a shoe. The shoe includes a base and an attachment portion. The base abuts a workpiece and provide a depth of cut. The attachment portion is perpendicular to the base. The attachment portion is welded to the base.

The invention relates to a hand-held circular saw (100) having a housing (110) in which a drive motor (120) for rotationally driving a circular saw blade (140) is arranged, and having a handle (115) which is arranged on the housing (110) and on which a suspension device (199) is arranged, said suspension device having a rotational axis section and a hook element (160), the hook element (160) being arranged perpendicular to the rotational axis section, the invention relates to a hand-held circular saw (100) comprising a housing (110) having a rotary shaft section which forms a rotary axis and is rotatably mounted on the housing (110), the hook element (160) being pivotable about the rotary axis in an associated plane (302), the associated plane (302) being oriented parallel to a center-of-gravity plane (301) of the hand-held circular saw (100).

A rotary cutting tool includes a battery pack receptacle, a handle, a motor, a blade driven by the motor, a blade guard surrounding the blade and a shoe. The shoe includes a base and an attachment portion. The base abuts a workpiece and provide a depth of cut. The attachment portion is perpendicular to the base. The attachment portion is welded to the base.

A track saw assembly is provided including a track saw (i.e., a circular saw) having a shoe translatable upon a track. Various mechanisms control plunging of a saw unit and saw blade of the track saw relative to the shoe. For example, a plunge lockout mechanism is provided to prevent engagement of a trigger and prevent movement of a plunge mechanism. Various mechanisms control bevel angle adjustment of the saw unit relative to the shoe. For example, a linkage is provided and is operable to shift between a first position and a second position. In the first position, a bevel angle is restricted within a first bevel angle range. In the second position, the bevel angle is restricted within an expanded second bevel angle range. Other concepts relate to the interface between the shoe and the track and a clamp which secures the track to a workpiece.

A circular saw may include a base plate and a blade guard assembly coupled to the base plate, the blade guard assembly including an upper blade guard and a lower blade guard movable between an extended position and a retracted position. A circular saw may include a housing assembly coupled to a saw blade guard assembly, an output shaft, and a saw blade clamp coupled to the output shaft, the saw blade clamp configured to hold a saw blade. The circular saw may include a brushless direct current (DC) motor positioned within the housing assembly and operable to rotate the output shaft. The circular saw may include an electronic controller configured to perform a field weakening operation on the brushless DC motor.

A cut-off tool includes a housing, an arbor supported by the housing for relative movement therewith, and a cutting disk attachable to the arbor. The cut-off tool further includes a blade guard surrounding an upper portion of the cutting disk, a retaining clip securing the blade guard to the housing, and a detent mechanism between the blade guard and the retaining clip for selectively holding the blade guard in one of a plurality of positions relative to the housing.

A circular saw includes an upper blade housing and a lower blade guard coupled to the upper blade housing. The lower blade guard rotates about an axis and includes a guide track. The circular saw includes a lever having a guide track engaging end and a user engaging end. The lever is coupled to the upper blade housing at a lever pivot point positioned between the guide track engaging end and the user engaging end. The guide track engaging end includes a contact member configured to engage the guide track to rotate the lower blade guard.

The invention relates to a light-emitting module (70) for a hand-held circular saw (10), having a lamp housing (75) in which a power source is mounted, to which a light-emitting element (71) is electrically coupled, where the light-emitting element (71) is arranged to emit light in an emission region on one side of the lamp housing (75) up to a working region of the hand-held circular saw (10), and where the lamp housing (75) has a fixed section (76), in which the light-emitting element (71) is arranged to emit light in an emission region on one side of the lamp housing (75) up to the working region of the hand-held circular saw (10). The fastening section forms a fastening side with a contact surface (72) which is arranged and oriented to be detachably fastened to a fastening surface of the hand-held circular saw (10). Through the arrangement, a user can be provided with the possibility of properly illuminating the working area around the handheld circular saw according to individual requirements of the user.

Disclosed herein is a portable circular saw with improved cutting capabilities. The portable circular saw includes a motor and an arbor configured to operably mount a circular saw blade to the portable circular saw. In some examples, the portable circular saw includes a circular saw blade, the portable circular saw has a blade diameter, the portable circular saw has a maximum cutting depth, and the ratio of the maximum cutting depth to the blade diameter is at least 0.35 and at most 0.45. In some examples, the portable circular saw includes a base plate defining an arbor-facing side. In some such examples, at least 95% of the portable circular saw is completely contained within the footprint of the portable circular saw. In some such examples, the entire portable circular saw may be contained within the base plate width of the base plate.

A bevel saw (10) configured to perform a bevel cut in a workpiece. The bevel saw includes a motor (90) and an arbor (100) configured to operably mount a circular saw blade (200) to the bevel saw (10) and to rotate the circular saw blade (200) within a blade plane. The bevel saw (10) further includes a base plate (304) defining an arbor-facing side and an arbor-opposite side. The arbor is operably mounted to the arbor-facing side of the base plate (304). The bevel saw (10) also includes a bevel guide (600) configured to selectively vary the bevel angle between the blade plane and the arbor-opposite side of the base plate (304) within a range of motion for the bevel cut angle to selectively vary the bevel cut angle within the workpiece, and may include a bevel guide mount (700) configured to operably mount the bevel guide (600) to the base plate (304).

A guide rail adapter (3) guides a portable cutting tool along a cutting direction relative to the guide rail. The guide rail adapter (3) has a rail-guided component relative to the guide rail and a base cover (5) that supports the portable cutting tool. A connecting component (6) allows the base cover (5) to be displaced in a direction that intersects a path of the rail (the cutting direction). A locking area (6i) prevents the base cover (5) from moving away from the rail.

The invention relates to an intelligent mobile device and an intelligent system comprising the intelligent mobile device, the intelligent mobile device can be provided with a working head, and the intelligent mobile device comprises an intelligent mobile device main body; the walking mechanism is mounted on the intelligent mobile equipment main body to drive the intelligent mobile equipment main body to move; one end of the connecting arm is rotatably mounted on the intelligent mobile equipment main body, the other end of the connecting arm extends towards one side far away from the intelligent mobile equipment main body and is provided with a connecting structure used for mounting the working heads, and the connecting arm is provided with different working heads through the connecting structure so as to carry out different types of work; and the control module is electrically connected with the connecting arm so as to control the working state of the connecting arm. According to the intelligent mobile equipment, different working heads can be installed through the connecting arm according to different states so as to conveniently and rapidly switch the working states, so that the intelligent mobile equipment has relatively low use cost and relatively high working efficiency, and different requirements of people are met.

The present invention improves workability. A cutting work machine has a discharge channel, concave with a discharge opening open to the left, disposed at an outer peripheral portion of a saw cover. A discharge inlet portion that connects the saw cover and the discharge channel are formed at a front end of the discharge channel. Viewed from above, a side guide surface constituting the right-side surface of the discharge channel inclines to the left toward the rear. The rear surface of the discharge channel consists of a rear guide surface inclined to the rear toward the left side. Thus, cutting chips flowing towards the rear-end side of the discharge channel along the side guide surface hit the rear guide surface and changes the chip outflow direction to the left side (discharge opening side). With cutting chips being discharged substantially leftward from the discharge opening, the workability of the cutting work machine improves.

To increase the maximum tilting angle of a plunge circular saw.SOLUTION: A plunge circular saw 10 includes: a base 20; a body portion 30 disposed on a second side relative to the base 20; and a cover 50 disposed on the second side relative to the base 20. The body portion 30 is displaceable with respect to the base 20 and the cover 50 between a first position in which a cutting tool 35 is entirely housed in the cover and a second position in which the cutting tool 35 protrudes beyond the base 20 toward the first side opposite to the second side and is partially exposed outside the cover. The cover 50 includes a cover body 52 and an auxiliary cover 500 that is disposed to function as a part of a portion of the cover 50 close to the base 20 and is relatively movable with respect to the cover body 52. The body portion 30 and the cover body 52 are tiltable about a first tilting axis AX6 located on a first side with respect to the base 20.SELECTED DRAWING: Figure 21

Circular saws are disclosed herein. The circular saws include a cutting assembly, a base plate, a pivot assembly, and a pivot bias mechanism. The cutting assembly includes a motor and an arbor. The base plate defines an assembly-facing side and an assembly-opposed side. The pivot assembly operatively attaches the cutting assembly to the base plate. The cutting assembly and the base plate are configured to operatively rotate, relative to one another and about a pivot axis of the pivot assembly, to selectively vary a region of the circular saw blade that extends on the assembly-opposed side of the base plate. The pivot bias mechanism is configured to apply a linear force between the cutting assembly and the base plate in a linear bias direction that urges the cutting assembly and the base plate in opposed directions along the pivot axis.

To provide a portable process machine, in which a use feeling of a user can be improved.SOLUTION: A portable process machine comprises a base, a cover part covering a cutting tool at least partially, a main body part on which the cutting tool is mounted, and an energizing member. The main body part is configured to be displaceable with respect to the base and the cover part, between a first position where the cutting tool is wholly stored in the cover part and a second position where the cutting tool is partially exposed out of the cover part. The main body part has a first contact part that can come into contact with the cover part, and the cover part has a second contact part that can come into contact with the main body part. The portable process machine is configured so that the main body part is energized by the energizing member in a direction in which the part moves from the second position toward the first position and therefore the first contact part comes into contact with the second contact part, which enables the main body part to be positioned at the first position. At least either of the first contact part and the second contact part is formed of an elastic body.SELECTED DRAWING: Figure 7

The present invention provides a work machine that suitably collects machining chips such as dust generated during work. In a circular saw (10), a chip discharge port (27H) and a hood opening (27J) are formed in an inner hood (27), and a dust collection chamber inlet portion (62L1) and a dust collection chamber outlet portion (62L2) are formed in a dust collection housing (60). Moreover, at least a part of the dust collection chamber inlet portion (62L1) and at least a part of the dust collection chamber outlet portion (62L2) are arranged at the same position in the vertical direction.

The utility model relates to the technical field of wood saw blades, and discloses an easy-to-install wood saw blade which comprises an angle grinder, a rotating shaft and a cutting blade, the angle grinder is rotatably connected with the rotating shaft, the rotating shaft is fixedly installed on an output shaft of the angle grinder, the rotating shaft is movably sleeved with a fixed disc, and movable discs are arranged in front of the fixed disc at intervals. The cutting blade is arranged between the movable disc and the fixed disc, clamping blocks are annularly arranged on the inner side of the movable disc, a boss is arranged at the position, corresponding to the movable disc, of the rotating shaft, clamping grooves are annularly formed in the boss, the number of the clamping blocks corresponds to the number of the clamping grooves, and the clamping blocks are movably connected into the clamping grooves. According to the scheme, the movable disc and the fixed disc can be used in cooperation, the position of the cutting blade can be stably fixed, bolt assistance is not needed in the whole disassembling and assembling process, and time and labor are saved.

To provide a guide clamp capable of fixing a plate material on a work table and preventing the plate material from being rattled through operation of an electric saw.SOLUTION: A guide clamp 10 is mainly provided with a bolt 111, a pair of nob nuts 112 screwed on the bolt 111, a guide 130, and a rotational part rotatably connecting the bolt 111 on the guide 130. The guide clamp 10 is fixed on a top board 21 of the work table 20 by clamping the top board 21 of the work table 20 with the pair of bolt nuts 112 in a vertical direction after inserting the bolt 111 into a through hole 22 previously arranged in the top board 21 of the work table 20. This makes positions of the pair of nob nuts 112 adjusted in a vertical direction such that a lower surface of the guide 130 abuts an upper surface of a plate material B to be cut when the guide 130 is inclined to a horizontal position.SELECTED DRAWING: Figure 4

A circular saw includes: a rotatable circular-saw blade; an electric motor that generates rotational power for rotatably driving the circular-saw blade; and a battery-mounting part configured to detachably mount a battery that supplies electric power to the electric motor. The diameter of the circular-saw blade is 300 mm or more and 460 mm or less.

The present invention relates to a tool blade (14) having a structure (24) comprising at least two elements (22) on at least one side (26) of the tool blade (14), wherein the structure (24), together with its elements, is rotationally symmetric with respect to a rotation angle of less than 360°, particularly 180° at most, about the central blade rotation axis (R) of the tool blade (14), but is not mirror-symmetric with respect to any diameter of the tool blade (14) extending through the blade rotation axis (R). The present invention also relates to a tool mounting section (12), a tool blade system (15), and a power tool (10). The tool enables particularly safe operation.

Circular saws with transparent windows that extend within blade guard openings and cover fastening structures. The circular saws include a motor and an arbor configured to operatively attach a circular saw blade to the circular saw. The circular saws also include a blade guard. The blade guard includes a blade guard opening, which is positioned to permit a user of the circular saw to view a leading edge of the circular saw blade as the circular saw cuts a workpiece. The circular saws also include a transparent window, which extends within the blade guard opening, and a cover fastening structure, which is configured to selectively attach a splinter guard to the blade guard while the transparent window extends within the blade guard opening.

A hand-held power tool may include a rotatable work tool with a center, a circumference and a direction of rotation. The power tool may further include a blade guard arrangement arranged to shield a variable part of the rotatable work tool which may include a blade guard and a swiveling cover part attached to the blade guard. In a first position, the swiveling cover part may be positioned such that a first portion of the circumference is covered, following the blade guard, and extending an angular distance after the blade guard, in the direction of rotation. The swiveling cover part may be moveable between the first position and a second position where a cutting operation of the rotatable work tool along the first portion of the circumference occurs. The cover part may be biased towards the first position.

To solve the problem in a blade of a vibration multi tool which is provided with cutting teeth at the tip, the use of the blade enabling cutting of an object only by pressing a vibrating tip part against the object, in which when the vibrating tip part is brought into contact with the object, the cutting teeth bounce on a surface of wood or the like to scratch a surface of the object or cut a wrong part.SOLUTION: A blade for an electric tool having a drive shaft that performs reciprocating circular arc vibrations comprises: a tooth row formed linearly by a plurality of cutting teeth at a front end; and a connecting hole for connecting to the center of the drive shaft at a rear end. A first cutting tooth at a tip among the plurality of cutting teeth is formed with a tooth tip lower than that of an adjacent second cutting tooth, the second cutting tooth is formed with a tooth tip lower than that of an adjacent third cutting tooth, and the third cutting tooth is formed with a tooth tip lower than that of an adjacent fourth cutting tooth.SELECTED DRAWING: Figure 1

The utility model relates to the field of electric tools, in particular to a trephine with stable transmission, which comprises a driving assembly and a shell which are rotatably connected, the driving assembly comprises a driving device and a shell, the driving device is positioned in the shell, the front end of the shell is rotatably connected with a trephine blade, the trephine blade is driven by the driving device to rotate, a driven gear is further arranged in the shell, and the driven gear is driven by the driving device to rotate. The driven gear is in transmission connection with the driving device, a sawtooth ring is arranged in the trephine blade, and the sawtooth ring is meshed with the driven gear; the trephine is stable in transmission, and the problem that a trephine blade of a traditional trephine is prone to slipping is solved.