84results about "Power driven reciprocating saws" patented technology

The utility model relates to the technical field of woodworking tools, in particular to a jig saw and a saw blade adjusting mechanism thereof. The saw blade adjusting mechanism comprises a saw blade shaft, an adjusting shaft, a limiting sleeve, a limiting shaft, a limiting knob, a connecting sleeve, an adjusting knob and a handle. According to the jig saw and the saw blade adjusting mechanism thereof, the tightness degree of the saw blade can be rapidly and efficiently adjusted, the orientation of the cutting edge of the saw blade can be flexibly adjusted in real time in the application of machining complex products, and therefore the applicability of a woodworking saw is improved, and the cost performance of the woodworking saw is improved.

Herein a hand-held electrically powered device (2) is disclosed. The hand-held device comprises a housing (4)), an electric motor (14), and a fan (18). The hand-held device (2) comprises a wall member (20) arranged inside the housing (4) and forming at least part of a wall (22) which delimits a first compartment (24) from a second compartment (26) within the housing (4). The wall member (20) forms an individual element. The wall member (20) is coupled to first and second housing elements. The wall member (20) comprises a through opening (42). The electric motor (14) extends from the first compartment (24) to the second compartment (26) via the through opening (42). The electric motor (14) is supported by the wall member (20).

A saw blade includes a blade body having a top surface and a bottom surface, wherein the blade body is at least partially comprised of a first composite material or a metal; a cutting edge on a distal end of the blade body; and a coupling configured to connect the blade body to a handpiece adapted to oscillate the blade body. The saw blade may include:a first inlay portion and a second inlay portion, where the first inlay portion is either embedded in the top surface or covers the top surface, and the second inlay portion is either embedded in the top surface or covers the bottom surface; oran inlay portion sandwiched between a top portion and a bottom portion of the blade body.

The invention relates to a tool clamping device (10) for an oscillating multifunctional tool (12), comprising at least one tool securing unit (14), at least one actuating unit (16) for securing a tool (18) to the tool securing unit (14) or for releasing the tool (18) from the tool securing unit (14), and at least one damping element (20) arranged between the actuating unit (16) and the tool securing unit (14). According to the invention, the damping element (20) is designed as an elastomer.

An oscillating power tool includes a housing, a motor disposed generally within the housing and including a drive shaft, an output spindle configured to be driven by the motor and journaled for oscillating rotation about an oscillation axis, a drive mechanism configured to convert rotation of the drive shaft into oscillating rotation of the output spindle about the oscillation axis, the drive mechanism including an eccentric member configured to rotate off center about the motor axis, and a forked member operatively coupled to the eccentric member and configured for oscillating rotation about the oscillation axis in response to rotation of the eccentric member, and an amplitude adjustment actuator configured to move the eccentric member in the direction generally parallel to the motor axis to change an angular amplitude of oscillating rotation of the forked member.

The invention discloses a long bamboo section saw seam unblocking device, and belongs to the technical field of bamboo wood processing. The long bamboo section saw seam through joint equipment comprises a seam cutting assembly which comprises a U-shaped saw frame and a rope saw, and the rope saw is fixed to the lower portion of the U-shaped saw frame through a fastening screw; a pair of mounting frames is arranged along the length direction of the U-shaped saw frame; the first adjusting assemblies are arranged in one-to-one correspondence with the mounting frames, each first adjusting assembly comprises a lifting motor, a first adjusting screw, an adjusting block and a bearing plate, the first adjusting screws are fixedly connected with the output ends of the lifting motors, the bearing plates are horizontally and fixedly connected to one sides of the mounting frames, and the first adjusting screws are sleeved with the adjusting blocks in a threaded mode; the supporting frame is horizontally arranged, the two ends of the supporting frame are hinged to the adjusting blocks in the corresponding adjusting assemblies respectively, and the U-shaped saw frame is horizontally embedded in the bottom of the supporting frame in a sliding mode. Through cooperative control of the lifting motor and the slider-crank mechanism, a dynamic matching dip angle is formed between the saw track and the axis of the bamboo section, and the problem of cutter deviation caused by traditional vertical saw cutting is avoided.

A blade clamp for use with a power tool having a reciprocating spindle. The blade clamp comprises: a cover rotatably coupled to the spindle, the cover including a first ramped surface and a second ramped surface spaced radially inward of the first ramped surface; a spring coupling the cover and the spindle; and a detent received within a bore of the spindle, the detent movable in a radial direction relative to a longitudinal axis of the spindle to adjust the blade clamp between a locked configuration and an unlocked configuration. The spring biases the cover toward a first rotational position relative to the spindle coinciding with the locked configuration. The cover is rotatable against the bias of the spring toward a second rotational position relative to the spindle coinciding with the unlocked configuration. A portion of the detent is positioned between the first ramped surface and the second ramped surface when the blade clamp is adjusted between the locked configuration and the unlocked position such that the portion of the detent remains between the first ramped surface and the second ramped surface throughout an entire range of adjustment of the cover between the first rotational position and the second rotational position.

Disclosed are a saw blade quick-change structure for electric tools, and a saw blade quick-change method. The saw blade quick-change structure for electric tools comprises a locking mechanism, a head shell, a tool rest and a quick-change buckle. The locking mechanism is installed in the head shell. The tool rest is installed at the bottom of the head shell. The quick-change buckle is hinged to the head shell. The locking mechanism comprises a movable rod, a locking rod, a collet chuck, a locking block, a stop collar and a return spring. The collet chuck is located below the movable rod. The locking rod is clamped by the collet chuck. The locking block and the stop collar open or close the collar chuck. The return device returns the locking block. The saw blade is assembled and disassembled through the cooperation of the collet chuck and the locking block.

A system is provided comprising a robotic instrument for use with a tool. In some versions, the robotic instrument comprises a hand-held portion to be held by a user and a tool support movably coupled to the hand-held portion to support the tool. The robotic instrument further includes an actuator assembly operatively attached to the tool support and the hand-held portion and configured to move the tool support relative to the hand-held portion in a plurality of degrees of freedom. The robotic instrument may includes a handle alignment member extending from the hand-held portion. At least a portion of the handle alignment member and a tool plane defined by the tool are aligned when the tool support has an optimal range of motion relative to the hand-held portion.

An oscillating power tool includes a housing, a motor disposed generally within the housing and including a drive shaft, an output spindle configured to be driven by the motor and journaled for oscillating rotation about an oscillation axis, a drive mechanism configured to convert rotation of the drive shaft into oscillating rotation of the output spindle about the oscillation axis, the drive mechanism including an eccentric member configured to rotate off center about the motor axis, and a forked member operatively coupled to the eccentric member and configured for oscillating rotation about the oscillation axis in response to rotation of the eccentric member, and an amplitude adjustment actuator configured to move the eccentric member in the direction generally parallel to the motor axis to change an angular amplitude of oscillating rotation of the forked member.

A tool attachment configured to remove a wheel weight from a vehicle wheel is disclosed. The tool attachment comprising a body. The body include an exterior surface, a first end, and a second end. A mounting surface is positioned on a first portion of the body proximate to the first end. The mounting surface is configured to abut a tool. An opening extends from the mounting surface to the exterior surface of the body. The opening is configured to receive a fastener to secure the body to the tool. A blade engage surface is positioned on a second portion of the body proximate to the second end. The blade engaging surface is configured to receive and secure a blade to the body. A tool including the tool attachment and a method of using the tool attachment are also disclosed.

The present invention provides a reciprocating cutting tool that allows for easy attachment and detachment of the blade, has a more compact outer diameter, and suppresses changes in the blade mounting angle. [Solution] The jigsaw, as a reciprocating cutting tool, is equipped with a blade holder 32 for attaching and detaching a blade 34, which is capable of reciprocating up and down. The blade holder 32 is movable in a direction approaching and moving away from the blade 34, i.e., in the left-right direction, and has a first pressing member 130 capable of pressing the blade 34, a first biasing member 134 that biases the first pressing member 130, a second pressing member 142 capable of pressing the blade 34 in a direction different from the direction of pressing by the first pressing member 130, i.e., downward, and a second biasing member 144 that biases the second pressing member 142. When the second pressing member 142 is pressed by the blade 34, the first pressing member 130 automatically presses the blade 34. The first biasing member 134 is positioned to avoid the direction of movement of the first pressing member 130.

The utility model discloses a novel rechargeable jig saw, and belongs to the field of jig saws. The device mainly comprises a machine shell, a rolling sleeve assembly and a driving assembly, a supporting box base is installed in the machine shell, the rolling sleeve assembly comprises a first rotating shaft installed on the supporting box base through a bearing, a large gear is installed on the first rotating shaft, and an eccentric shaft is installed at the eccentric position of the large gear; a front support and a rear support are symmetrically installed in the machine shell, a reciprocating rod composed of main rod bodies at the two ends and a middle connector is arranged between the front support and the rear support, the main rod bodies at the two ends penetrate through the front support and the rear support respectively, the connector is located between the two main rod bodies and provided with a kidney-shaped groove, and one end of the reciprocating rod is detachably connected with a saw blade. The eccentric shaft is sleeved with a rolling sleeve part which is matched with the kidney-shaped groove and reduces the friction coefficient between the rolling sleeve part and the kidney-shaped groove. According to the novel rechargeable jig saw, the rolling sleeve part of the eccentric shaft is matched with the waist groove of the reciprocating rod, sliding friction is replaced with rolling friction, energy consumption and abrasion are effectively reduced, and transmission stability and equipment durability are enhanced.

This invention provides a power tool. The vibratory tool has an inner housing (3), a spindle (5), a clamping shaft (61), a clamping spring (65), a clamping member (71), a collar (75), an operating handle (77), and a pressure sleeve (671). The collar (75) holds the clamping member (71) so that it can move relative to it in a vertical direction between a locked position and an unlocked position. The locked position is when the clamping member is engaged with the clamping shaft (61) in a state where it cannot move radially, and the unlocked position is when the clamping member can move radially. The operating handle (77) moves the clamping member (71) downward relative to the collar (75) and the spindle (5) in response to a predetermined release operation. The clamping member (71) moves from the locked position to the unlocked position relative to the collar (75) in response to the release operation. During the downward movement, the clamping member (71) presses down on the tip tool (91) via the pressure sleeve (671). Accordingly, the tip tool can be easily removed.

To provide an electric working machine improved in workability at higher output.SOLUTION: According to one aspect of the present invention, there is provided an electric working machine for cutting a work target, the electric working machine including a working unit and a main body, the working unit being configured to cut the work target, the main body including a housing, a flow passage forming portion, a motor, and a control unit, the motor being configured to generate rotational power for driving the working unit, the control unit being configured to electrically control rotation of the motor, the flow passage forming portion forming an air flow passage including a first air flow passage and a second air flow passage, the first air passage communicates with an outside of the housing and is configured to allow outside air to flow to the motor via the control unit, and the second air passage communicates with the outside of the housing and is configured to allow outside air to flow directly to the motor.SELECTED DRAWING: Figure 1

The invention discloses a saw blade chuck structure and a jig saw comprising the same, and relates to the technical field of cutting tools, the saw blade chuck structure comprises a clamping seat, a clamping groove is formed in the end of the clamping seat, a saw blade is inserted into the clamping groove, a positioning unit is arranged on the clamping seat, and a limiting unit is arranged on the positioning unit; the positioning unit comprises two supports which are correspondingly arranged, one support is provided with a guide column, the guide column is movably sleeved with a limiting seat, the limiting seat is provided with limiting teeth, a positioning spring is arranged between the support and the limiting seat, and the end of the limiting seat is provided with a wedge-shaped block; the ratchet mechanism is matched with the limiting teeth and is used for positioning the saw blade; according to the saw blade assembly and disassembly device, quick disassembly and assembly of the saw blade are achieved, breakage of the root of the saw blade is effectively prevented, operation safety is ensured, in addition, when the saw blade assembly and disassembly device is used for a long time, the saw blade is prevented from deforming due to high temperature, and the service life of the saw blade is prolonged.

Oscillatingly driven machine tool with a housing (12) in which a motor (26), a tool spindle (18) with a tool holder (31) for fastening a tool (20), and an oscillation drive (36) are accommodated, wherein the oscillation drive (36) is driven by the motor (26) and is coupled to the tool spindle (18) for the rotationally oscillating drive about its longitudinal axis (19), and with at least one controllable actuator (44, 46, 48, 50) in order to superimpose at least one movement component on the rotational oscillation movement of the tool spindle.

The invention relates to a saw blade (10), in particular a wood saw blade, for an oscillating multi-function tool (12) with at least one carrier (14) and with at least one cutting strip (16) arranged on the carrier (14), which is at least partially made of high-speed steel. It is proposed that the cutting edge (16) has a trapezoidal profile when projected parallel along a direction parallel to a principal extension plane of the support (14).

A surgical sagittal saw cartridge that includes a guide bar formed from an inner plate and opposed outer plates, the inner plate defining a head. The cartridge has a blade that is disposed against the head of the inner plate. The inner plate may comprise an inner tine and / or two opposed outer tines. The inner tine may be formed to define the head against which the blade is disposed. The outer tines may extend distally so as to define a space between the outer tines in which the blade is seated.

The present invention provides a cutting tool for surgical procedures. More specifically, the present invention provides a rotary surgical cutting tool which overcomes the disadvantages of prior art surgical cutting tools by providing a rotary cutting tool having straight flutes, with each side of the flute being provided with a cutting edge that permits cutting in both directions during limited oscillatory motion of the rotary surgical cutting tool. The areas between the cutting edges are provided with relief to reduce friction while the flute moves the cut material away from the cutting edges.

To realize a cutting work machine capable of supporting a plate-like material.SOLUTION: A knife cutter 1 includes: a housing which houses a motor; a cutting blade 18 which is driven by the motor; a first support part 50 provided at the housing; and a second support part 60 which is provided at the housing and separated from the first support part 50. A surface c1 of a cutting piece C is placed in contact with the first support part 50 and a rear surface c2, which is opposite to the surface c1, of the cutting piece C is placed in contact with the second support part 60 to support the cutting piece C.SELECTED DRAWING: Figure 7

To provide a surgical sagittal saw cartridge including a guide bar formed by an inside plate having a head and outside plates facing each other.SOLUTION: A cartridge has blades arranged with respect to a head of an inside plate. The inside plate is formed so as to have an inside small portion and two outside small portions facing each other. The inside small portion is formed so as to define the head arranged with the blades facing each other. The outside small portions extend in front of the inside small portion in order to define a space of the outside small portions on which the blades are seated.SELECTED DRAWING: Figure 2

This utility model discloses a reciprocating saw with smooth operation, aiming to solve the technical problems of existing reciprocating saws with an open working area, which generates a large amount of flying sawdust when cutting wood. Specifically, the high-speed moving saw blade scatters the sawdust into the working area in a scattering manner, obstructing the view and increasing the risk of misoperation; sawdust accumulates in the cutting kerf, not only reducing cutting efficiency but also potentially causing the saw blade to overheat or even be damaged; and polluting the working environment and increasing cleaning costs. The invention includes a reciprocating saw housing, a saw blade and a baffle connected to the front end of the reciprocating saw housing, and dust collection components located on both sides of the reciprocating saw housing near the front end. The dust collection components include a metal hose, a dust collection head connected to one end of the metal hose, and a hose connector detachably connected to the other end of the metal hose; the hose connector is integrally formed and connected to the reciprocating saw housing; the dust collection head is detachably connected to a vacuum cleaner hose.

A power tool comprises a housing, a motor in the housing, and an output spindle operatively configured to be driven by the motor in an oscillating motion about an oscillating axis, the output spindle including a movable blade clamp shaft. A clamp assembly is disposed at an underside of the housing and is configured to be driven by the output spindle in the oscillating motion. The clamp assembly comprises a first blade clamp jaw, and a second blade clamp jaw on the blade clamp shaft opposing the first blade clamp jaw. A clamp actuator is disposed at an underside of the housing adjacent to the clamp assembly, and a yoke is connected to the clamp actuator and extends over an upper end of the output spindle. Actuation of the clamp actuator moves the yoke downwardly, thereby causing the blade clamp shaft to move the second blade clamp jaw downwardly away from the first blade clamp jaw, and thereby allowing a power tool accessory to be inserted, or removed from, between the first and second blade clamp jaws.

The utility model belongs to the technical field of garland saws, and relates to a rope-driven garland saw which comprises a support body, the support body is located in a shell and comprises a base, a stand column and a supporting arm, and the base stand column and the supporting arm form a C-shaped support body; the motor is mounted on the base; the first broaching tool block and the second broaching tool block are installed on the base and the supporting arm in a sliding mode respectively, and the first broaching tool block and the second broaching tool block are used for fixing a fret saw; the steel rope is installed in the support body through a transmission wheel, and the two ends of the steel rope are connected with the first broach block and the second broach block respectively; wherein the motor drives the steel rope to do reciprocating motion through the transmission mechanism, and the steel rope drives the fret saw to do reciprocating motion through the first broach block and the second broach block.

The invention relates to a tool clamping device (10) for an oscillating multi-function tool (12), with at least one tool locking unit (14) and with at least one actuating unit (16) for securing a tool (18) to or releasing the tool (18) from the tool locking unit (14) and with at least one damping element (20) that is arranged between the actuating unit (16) and the tool locking unit (14). It is proposed that the damping element (20) be designed as an elastomer.

Provided is an oscillating saw that achieves a reduction in impact force in cutting. An oscillating saw (100) comprises a saw blade (1) and a drive device (2) that causes the saw blade to oscillate so as to swing about an axial position. The path of a tooth tip (12a) of the saw blade has: an arc-shaped first path that overlaps in reciprocating oscillations; and a second path located behind a virtual line at the end of an oscillation, the virtual line obtained by extending the first path to the end of the oscillation.

An accessory for an oscillating power tool includes an attachment portion having a planar portion lying in a first plane and a working portion extending generally along a longitudinal axis that is transverse to the first plane. The working portion has a rear end portion coupled to the attachment portion, a curved front cutting edge opposite the rear end portion, a first side cutting edge extending from the front cutting edge to the rear end portion, and a second side cutting edge opposite the first side cutting edge and extending from the front cutting edge to the rear end portion. The working portion includes a curved surface that contains the longitudinal axis. The front cutting edge, the first side cutting edge and the second side cutting edge each have a plurality of cutting teeth extending along an entirety of the front cutting edge, the first side cutting edge and the second side cutting edge respectively.

A system is provided comprising a robotic instrument for use with a tool. In some versions, the robotic instrument comprises a hand-held portion to be held by a user and a tool support movably coupled to the hand-held portion by an actuator assembly. The actuator assembly configured to move the tool support relative to the hand-held portion in a plurality of degrees of freedom. The robotic instrument may include a shroud coupled to and extending between the tool support and the hand-held portion. The shroud may comprise a crease formed between the hand-held portion and the tool support, the crease defining a plane configured to be displaced when the tool support is manipulated relative to the hand-held portion. The plane providing a visual indication of a pose of the tool support relative to the hand-held portion.

A blade clamp, for use with a power tool having a reciprocating spindle, includes a cover rotatably coupled to the spindle and a detent received within a bore of the spindle. The detent is movable in a radial direction relative to a longitudinal axis of the spindle to adjust the blade clamp between a locked configuration and an unlocked configuration. The cover is rotatable between a first rotational position relative to the spindle coinciding with the locked configuration, and a second rotational position relative to the spindle coinciding with the unlocked configuration. The blade clamp further includes a sleeve in which the detent is slidably received. The sleeve includes a non-corrosive material for inhibiting corrosion of the detent.