Abstract: A reciprocating saw includes a housing assembly and a motor positioned substantially within the housing assembly. The motor includes a pinion. A drive mechanism is positioned substantially within the housing assembly and includes a gear driven by the pinion, a spindle, and a connecting rod to transmit rotation of the gear into reciprocation of the spindle. A bushing is positioned substantially within the housing assembly about at least a portion of the spindle. The bushing is pivotable relative to the housing assembly to accommodate non-linear rocking motion of the spindle. A seal surrounds a portion of the bushing and includes a first lip extending radially from the bushing and a second lip spaced apart from the first lip and extending radially from the bushing. The second lip is movable relative to the first lip. Both the first lip and the second lip continuously engage the housing assembly when the bushing pivots relative to the housing assembly.

Abstract: A windshield removal assembly, method and blade for same, with the thin metal blade having a unique delta-shape. The blade connects at its narrowed shank portion to the shaft of a reciprocating power tool. The blade has front and rear ends, the front end being substantially straight and wider than the blade rear end. The top edge of the blade forms a non-sharpened top edge on the front end and arc portions, while the bottom edge of the blade forms a sharpened bottom cutting edge which extends across the front end of the blade and along at least half of the arc portions. The blade has sufficient rigidity to cut the urethane bed when reciprocated, and sufficient lateral flexibility to conform to the curved surface of the windshield when pressed thereagainst.

Abstract: A pivotable shoe assembly, for use on a reciprocating saw having a housing and a saw blade, includes a shoe support coupled to the housing and having a longitudinal axis. The shoe support includes a base member extending at least partially along the longitudinal axis to define a first plane. The shoe assembly further including a shoe pivotably coupled to the shoe support. The shoe includes a contact surface defining a second plane and a blade recess defined by the contact surface to allow the saw blade to pass therethrough. The shoe further includes plurality of locking positions, each locking position corresponding to an engagement angle, where the engagement angle is defined as the angle between the first plane and the second plane.

Abstract: A drive mechanism for a power tool. The power tool includes a motor having a drive shaft and an output member adapted to support a tool element. The drive mechanism includes a drive assembly engaged with and driven by the drive shaft and a drive arm drivingly connected between the drive assembly and the output member to transmit driving force from the drive assembly to the output member. The drive arm is configured to absorb an impact.

Abstract: The present invention provides a blade clamp for an electrically powered reciprocating saw. The clamp is arranged to eliminate, or at least reduce, misalignment of a blade during use with the cut direction and the longitudinal axis of a jigsaw. Thus, so-called “crabbing” of the jigsaw can be reduced, thereby increasing the accuracy with which an operator can use the jigsaw. This is achieved by modifying the blade retaining pin such that it comprises a radial protrusion which engages with or locates in a cooperating groove disposed on the clamp body. Arranging the groove and protrusion to have an engagement surface (as opposed to a point of contact) further improves on lateral stability of the pin with respect to a reciprocating shaft of the saw.

Abstract: A reciprocating tool comprising a drive shaft and a motor, a plunger for reciprocating motion, the plunger being driven by a wobble plate and pivotally supported in a front bushing and in a manner not prohibiting the plunger to rotate about a longitudinal axis of rotation, the plunger has a rear spherical end, a movable counterweight and a drive arm for moving the counterweight, the counterweight having an opening for receiving the plunger, the opening has side walls that support the rear spherical end of the plunger as it moves relative to the counterweight, a first wobble plate assembly connected to the drive shaft and having a first wobble plate interface engaging and reciprocating the plunger in the front bushing and the counterweight; and a second wobble plate assembly operatively connected to the drive shaft and having a second wobble plate interface engaging the drive arm of the counterweight.

Abstract: A reciprocating saw generally includes a housing and a motor supported by the housing. A spindle is mounted for reciprocation relative to the housing, the spindle having a front end for supporting a saw blade and being movable through a cutting stroke and a return stroke, and the cutting stroke may have a stroke length. A rotary member may be supported for rotation about a rotary axis. The saw may further include an adjusting assembly operable to adjust the stroke length of the spindle. Also, the saw may include a counterweight supported for movement relative to the housing, a movement of the counterweight substantially balancing at least a portion of movement of the spindle, and an adjusting assembly operable to adjust the movement of the counterweight.

Abstract: In a hand-guided, motor-driven compass saw machine (1), having a housing (2) that contains a saw blade (3) that can be moved in the vertical direction by a lifter rod (4), and having an oscillation mechanism that has a roller lever (5), which is contained in the housing so that it can rotate around a horizontal first axis (50) and supports a roller (51) that remains in contact with the saw blade (3) and rotates around a horizontal second axis (55), which oscillation mechanism also has a fork lever (6) that periodically deflects the roller lever (5), an adaptive adjustment of the forward saw progress to the advancing force of the compass saw machine (1) is achieved by virtue of the fact that the oscillation mechanism produces an oscillation of the saw blade (3) as a function of the pressure.

Abstract: A method of forming a tapered bore an orifice layer of a photo-resist comprises forming a lens in a surface of a first unexposed portion of the layer and exposing the first unexposed portion through a bore-hole mask to define an exposed portion and a second unexposed portion, wherein the second unexposed portion has a tapered shape. The layer is baked to cross-link the exposed portion and developed to remove the second unexposed portion to form a tapered bore hole. The tapered bore hole has a shape corresponding to the tapered shape.

Abstract: Preferred embodiments of a reciprocating drive apparatus are disclosed that comprise a housing, a rotatable drive shaft assembly located in the housing an elongated plunger located in the housing for reciprocating motion, the plunger having a front end portion for attaching a tool thereto, a rotary joint rocker mechanism supported in the housing and operatively connected to the plunger and the drive shaft assembly so that rotation of the drive shaft assembly produces reciprocating motion of the plunger. Another preferred embodiment includes a reciprocating counterweight.

Abstract: A saw for cutting an overhead object is provided. The saw including: an elongated pole having a first end held by a user and a second end; a holding mechanism disposed at the second end of the elongated pole, the holding mechanism having an opening for holding the overhead object; and a cutting blade movably disposed on one of the elongated pole or holding mechanism so as to define a cutting stroke within the opening.

Abstract: A motor-driven reciprocating saw (10) includes a guide device (20) the guide member (21) of which has a base body (25) and a guide sole (27) provided on the base body (25) and having a first layer (31) formed of a rigid material with a low frictional adhesion and forming a bearing surface (28) for the workpiece, a third layer (33) likewise formed of a rigid material and formed integrally with the base body (25), and a second layer (32) formed of a vibration-damping material and located between the first and third layers (31 and 33).

Abstract: A reciprocating saw includes a carrier operable to cooperate with a motor to translate rotational movement of the motor into reciprocal linear actuation of a saw blade. A carrier is slidably disposed within the housing and includes a first portion adapted to receive a saw blade and a second portion having a slot therethrough. A rotatable element is fixed for rotation about an output shaft of the motor. A follower operably interconnects the carrier and the rotatable element wherein rotation of the rotatable element provides reciprocal linear motion of the carrier whereby the follower follows a reciprocal linear path within the slot.

Abstract: A hand-guided power reciprocating saw has a machine housing, a saw blade drivable by a motor into a stroke motion, a guide device having two guide elements resting against the saw blade at opposite sides of the saw blade and operative for guiding and supporting the saw blade crosswise to a sawing direction, the guiding device further having a two-armed pivot lever with lever arms on each of which a corresponding one of the guide elements is situated, the guiding device also having an adjusting mechanism for adjusting a transverse spacing between the guide elements, a holder in which the guide device is integrated and which is configured to be mounted in the machine housing and/or to a base plate attached to the machine housing, the pivot lever being pivotally supported on the holder and the adjusting mechanism being accommodated in the holder.

Abstract: The invention relates to a clamping device (8) for connecting a saw blade (12) to a reciprocating rod (6) of a jig saw, in particular a hand-operated compass saw (2), comprising a mounting (20), which is connected to the reciprocating rod (6) and has a recess (22) for receiving a head end (10) of the saw blade (12), a locking sleeve (30), which can be turned about the axis (40) with respect to the mounting (20) against the force of a torsion spring (60) to lock the head end (10) of the saw blade (12) in a locking position in the recess (22) and to allow removal of the saw blade (12) in a removal position. It is intended that a stop (78) interacts with a part (80) of the torsion spring (60), in order to prevent movement of the locking sleeve (30) beyond the removal position.

Abstract: A reciprocating saw, including a housing, a spindle mounted for reciprocation relative to the housing, the spindle having an end adapted to receive a saw blade, the saw blade having a first orientation relative to the spindle to have a first cutting direction and a second orientation relative to the spindle to have a second cutting direction opposite the first cutting direction, and a drive assembly connected to the spindle and operable to selectively drive the saw blade along a first path of travel during a first cutting stroke and along a second path of travel during a second cutting stroke. The first path of travel is characterized by movement at least partially in the first cutting direction and the second path of travel is characterized by movement at least partially in the second cutting direction.

Abstract: In one embodiment of the present invention, SHINGLE KNIFE™, comprises a pneumatically powered miniaturized reciprocating or circular saw designed especially for roofing applications. In an alternative embodiment, SHINGLE KNIFE™ may be powered by rechargeable battery packs or the like. SHINGLE KNIFE™ is roughly size and shape of a Prior Art razor knife, but may be powered and provided with a depth gauge to prevent cutting through roofing underlayment or the like. In another embodiment of the present invention, the SHINGLE KNIFE™ may be provided for cutting sheetrock. A reciprocating, sharpened hook shaped blade pulls though the sheetrock, making a clean cut with little or no powdery debris. The SHINGLE KNIFE for sheetrock may be air or battery powered.

Abstract: The invention relates to a handheld tool, in particular a handheld saw, with an electric drive motor (12), a serially switched gearbox (13), and a movement converter (14) that converts the driven movement of the gearbox (13) into an axial to-and-fro movement of a lifting element (15) for driving a tool (16), in particular a saw blade, inside a housing (11). The gearbox (13) and the movement converter (14) are combined into a gear unit (17). The gear unit (17) is within a robust, bending- and deformation-resistant gear housing (40), which is in turn inside the housing (11). The housing (11) is made of flexible plastic.

Abstract: A drive mechanism for a power tool. The power tool includes a motor having a drive shaft and an output member adapted to support a tool element. The drive mechanism includes a drive assembly engaged with and driven by the drive shaft and a drive arm drivingly connected between the drive assembly and the output member to transmit driving force from the drive assembly to the output member. The drive arm is configured to absorb an impact.

Abstract: A clamp device for a reciprocating saw is disclosed herein, which does not require the use of a tool for saw blade replacement. The main feature of the device is that two clamping blocks are pivotally mounted on a bracket and each of the clamping blocks has a tooth portion and a cam portion formed on an outer surface thereof. An elastic member is located between the bracket and the clamping blocks. A button connected to a rod, which passes through a cover plate of the bracket and includes a tooth slot for engaging with the tooth portion of the clamping block. When the rod moves in an axial direction, the two clamping blocks are brought to rotate so that the cam portion can fasten or loosen the saw blade, and thereby the saw blade can be mounted and demounted conveniently and rapidly.

Abstract: The invention relates to a power tool with a reciprocating blade, such as a jigsaw, in which the blade can have linear and pendulum movement components imparted thereon and also to a blade holder assembly. There is provided a bearing for a holder member which allows control of the movement of the holder in relation to both movement components, said bearing including a first part though which the holder member passes and a second part in relation to which the holder member and the first part are movable.

Abstract: A cable cutter for attachment to a power drill has a housing, first and second cutting blades connected to the housing for movement relative to one another and a drive assembly releasably engageable with the chuck of the drill and operatively engaged with at least one of the cutting blades. The drive assembly includes a worm mounted on a drive shaft, a worm gear and a drive gear mounted on a main shaft, and a segment gear formed on one of the cutting blades. The worm and worm gear which are in engagement, as are the drive gear and segment gear. The main shaft is supported in the housing by three bearings. A torque arm is attached at one end to the housing and adapted at its other end to engage the handle of the drill. A reversible stabilizing handle attaches to the housing to allow the user to securely grip the housing during cutting operations.

Abstract: A motor-driven saw has a gearing housing (4), which has at least two housing parts (6, 8), a stroke bar (10), which in operation executes a stroke movement in the direction of a stroke axis (26), and a reciprocating movement generator (36) that can be turned on or off, by virtue of which the stroke movement is superimposed with a reciprocating movement executed transverse to the stroke axis (26). All bearing zones (30, 44, 62) over which the reciprocating movement generator (36) is supported on the gearing housing (4) in a preferred direction of advance (16) of the saw, are arranged in the same carrying housing part (6).

Abstract: A reciprocating power saw, in particular a saber saw, with a housing (1), a motor-driven reciprocating stroke bar (2) that has a tool receptacle (3) at its free end, and a bearing means (4), which axially displaceably and pivotably bears the stroke bar (2) in the tool-side end zone of the housing (1). The bearing means (4) has a guide part (5) with a bearing passage (6) for receiving the stroke bar (2), wherein the bearing means (4) is mounted by an elastic secondary bearing element (8) in a receiving passage (7) in the housing (1).

Abstract: An electric-powered cutting machine includes: an electric motor, a housing for the electric motor; a plunger driven by the electric motor to reciprocate; and a blade holding mechanism. The blade holding mechanism holds a blade at a tip end portion of the plunger. The blade holding mechanism includes: a blade receiving face including a groove, a swinging member and a pressing member. The groove is shaped substantially the same as an attachment portion of the blade. The swinging member has one and other ends and pivoted at a swing fulcrum. The one end has a blade pressing portion capable of being disposed to oppose to the groove. The other end elongates to separate from the plunger. The pressing member presses the one end toward the groove.

Abstract: The present invention relates to a reciprocating saw tool (10) having a motor drive (17) with a reciprocating driver (21) for a tool (15) and having a mass equilibrating body (22). In addition, a device (20) is provided, which serves to convert a rotary movement of the motor drive (17) into a reciprocating movement of the reciprocating driver (21) along a first movement axis (41) and an opposite reciprocating movement of the mass equilibrating body (22) along a second movement axis (42). For improving the sawing performance, the mass equilibrating body (22) is guided at an angle ? to the reciprocating driver (21) so that its movement axis (42) is constantly at an angle to the movement axis (41) of the reciprocating driver (21).

Abstract: An adjustable reciprocating saw has the ability to adjust the orientation of the saw blade in relation to the rest of the tool. The saw blade can pivot about two transverse axes, one parallel with and one perpendicular to the reciprocating motion axis of the saw blade. The portions of the saw's housing which rotate relative to one another are attached with a rotating joint comprising a pin and groove design. Rotation locks selectively prevent rotation of the saw blade about each axis. The rotation locks can be released through simply depressing buttons on the saw. A rear internal bearing increases the durability and decreases the size of the saw. A keyless adjustable shoe is mounted to the saw.

Abstract: A drive for a motor-driven hand-held tool includes a motor (17) and a gear mechanism (20) for converting a rotational movement of the motor (17) into a reciprocating movement of the reciprocating drive element (30) for a working tool, with the gear mechanism (20) having a transmission element (23) axially secured on a support (21) with a support member (26) and including a mass-balance member (31), a first eccentric take-off element (24) cooperating with the reciprocating drive element (30) and a second eccentric take-off element (25) cooperating with the mass-balance member (31) for imparting reciprocating movement thereto, and with the support member (26) forming a slide support surface for the mass-balance member (31).

Abstract: An anti-rotation reciprocating drive apparatus for a reciprocating saw utilizes a wobble plate assembly that includes a drive shaft and an elongated arm with an interface structure for engaging a spindle. The interface structure has two ball-type interfaces that are concentrically aligned with one another, with the outer one being smaller than the inner one and both engaging a receiver portion of the spindle. The larger ball-type interface causes reciprocating movement of the spindle and the smaller outer interface prevents rotation of the spindle. The contact between the interfaces and the spindle receiver is a single point contact which reduces operating friction, wear of the parts and heat being generated.

Abstract: An electric jigsaw (1) includes a main housing (2) containing a gear housing (10), a reciprocating rod (11) vertically projecting from within the gear housing, a saw blade (13) coupled to the rod via a coupling ring (12), and a transparent synthetic resin guard (14) provided at the lower front end of the main housing and the gear housing (10). The transparent guard includes a vertical optical path therethrough and is attached to the gear housing in such a manner as to be horizontally rotatable between a protective position for covering the coupling ring and an open position for exposing the coupling ring. Additionally included in the jigsaw is an insulating cover (15) assembled to the gear housing (10) within the main housing (2) and a downward oriented light-emitting diode (19) disposed at the bottom end of the insulating cover (15) directly above the transparent guard (14) when the guard is in its protective position.

Abstract: A jig saw for more precise movement during cutting with a laser alignment system for projecting a marker onto a workpiece to align with a target line to be cut. The laser alignment system comprises a housing, a laser generator within the housing, an internal battery supplying the laser generator, a switch which is positioned within the housing and independent of the main switch to turn on and turn off the laser generator. By turning on the switch, the laser generator projects a laser beam onto the workpiece ahead of the blade in alignment with the plane of the blade. The operator only needs to align the projected laser line along a target line on the workpiece to attain the more precise cutting without concentrating his observation exactly ahead of the cutting blade.

Abstract: A reciprocating saw, including a housing, a spindle mounted for reciprocation relative to the housing, the spindle having an end adapted to receive a saw blade, the saw blade having a first orientation relative to the spindle to have a first cutting direction and a second orientation relative to the spindle to have a second cutting direction opposite the first cutting direction, and a drive assembly connected to the spindle and operable to selectively drive the saw blade along a first path of travel during a first cutting stroke and along a second path of travel during a second cutting stroke. The first path of travel is characterized by movement at least partially in the first cutting direction and the second path of travel is characterized by movement at least partially in the second cutting direction.

Abstract: The present invention relates to a counterbalance mechanism for a reciprocating power tool in which a rocker cradle operatively connects or is coupled to a rocker arm driven by a rotary transmission mechanism to drive a counterweight in the opposite direction to that of the movement of the reciprocating rod so as to counteract the vibration produced by the reciprocating rod.

Abstract: A reciprocating saw, comprises: a housing [13], a plunger [15], a driving gear [7], a link shaft [4], a pushing member [9], a lifting member [11], a front end portion of said link shaft [4] rotatablely connect with a rear end portion of said plunger [15], said lifting member [1] connect with said housing [13] and contact with a front end portion of said pushing member [9], said lifting member [11] also contact with a sleeve bearing which disposed on a rear end portion of said plunger [15], a angle between lines through a center of a first eccentric shaft [5], a rotating center of said driving gear [7] and a rotating center of a second eccentric shaft [8] is an obtuse angle. Said pushing member will move back and forth when said link shaft [4] move forward, the movement of said pushing member in the direction opposite to the movement of said link shaft will eliminate the vibration which resulting from the reciprocating movements of said plunger.

Abstract: An adjustable reciprocating saw has the ability to adjust the orientation of the saw blade in relation to the rest of the tool. The saw blade can pivot about two transverse axes, one parallel with and one perpendicular to the reciprocating motion axis of the saw blade. The portions of the saw's housing which rotate relative to one another are attached with a rotating joint comprising a pin and groove design. Rotation locks selectively prevent rotation of the saw blade about each axis. The rotation locks can be released through simply depressing buttons on the saw. A rear internal bearing increases the durability and decreases the size of the saw. A keyless adjustable shoe is mounted to the saw.

Abstract: A power compass saw with a housing that accommodates a lifting rod for the up and down movement of a longitudinal saw blade attached thereto, has a toothed side and a saw blade back and with a guide roller which supports the saw blade back and has a central groove into which the saw blade extends with its saw blade back and is guided therein, the central circumferential groove has tapered groove sides with a 5° taper, the saw blade back has a straight portion and an end beveled portion with beveled edges having a 7° taper at both sides, the saw blade back has diametrically opposed edges provided at a transition from the straight portion to the beveled portion, and the saw blade back has a width which is measured between the diametrically opposed edges and is greater than a width of a bottom of the circumferential groove.

Abstract: A counterweight is provided to cancel axial vibration of a plunger of a saber saw. Swing rollers, rotatably supported at both ends of a roller shaft provided at a rear end of the plunger, are interposed between a pair of opposing tracks formed in an axially elongated groove formed on the counterweight.

Abstract: A reciprocating hand saw with a housing has a motor, a gearbox with a lifting rod for moving a saw blade mounted thereon up and down, and a base plate on which the housing is mounted, capable of carrying particularly easy-to-handle spare saw blades by the fact that the housing has an opening into which a magazine-like, longitudinal saw blade receptacle is capable of being inserted in a detachable, captive manner, and a part of the saw blade receptacle serving as grip projects outwardly.

Abstract: An insertable tool connector includes a drive body, a bushing, a locking plate, a restoring spring, a positioning ring, and a push ring. Thus, the insertable tool connector that can be used to connect the tools of different types, such as the saw blade, the screwdriver head or the like, thereby enhancing the versatility of the insertable tool connector. In addition, the tool can be mounted on and detached from the drive body of the insertable tool connector rapidly, thereby facilitating the user operating the insertable tool connector.

Abstract: A reciprocating cutting tool configured for orbital cutting, includes a housing, a power source disposed in the housing, a main linkage connected to the power source and to a blade for driving the blade in a vertically reciprocating motion, a foot plate connected to the housing and including a portion in operational relationship to the blade, a swivel bracket connected to the foot plate and disposed to exert an orbital force to a rear edge of the blade. A plunger is secured within the housing and connected to the linkage for reciprocal, pivotal and rotational movement, and has an end configured for receiving a blade. A selector mechanism for selecting at least between pivotal and rotational movement of the plunger, wherein the pivotal movement relates to orbital blade motion, and the rotational movement relates to scrolling blade motion.

Abstract: A reciprocating saw. The saw including a housing, a spindle supported for reciprocation relative to the housing, the spindle having an end selectively supporting a saw blade, a motor for moving the end during a cutting stroke and a return stroke, and path defining structure interconnected with the spindle and defining a first path of travel of the end relative to the housing during a first cutting stroke and during a first return stroke and a second path of travel of the end relative to the housing during a second cutting stroke and during a second return stroke, the second path of travel being different than the first path of travel. The saw blade is selectively supported in a first orientation relative to the spindle to have a first cutting direction and in a second orientation relative to the spindle to have a second cutting direction opposite the first cutting direction. The first path of travel is characterized by movement at least partially in the first cutting direction during the first cutting stroke.

Abstract: A device for cutting a sheet rock panel. A base plate has a through slot that receives a blade of a conventional utility knife and a free end right angle metal end clip of conventional tape ruler and a blind slot that receives the conventional tape ruler. A clamping plate is displaceably attached to the base plate and clamps the conventional tape ruler between itself and the base plate. The clamping plate has a center portion that is circular-shaped and a portion that has a concave upper surface and a convex lower surface that clamps the conventional tape ruler in the concave blind slot in the base plate.

Abstract: A reciprocating saw generally includes a housing and a motor supported by the housing. A spindle is mounted for reciprocation relative to the housing, the spindle having a front end for supporting a saw blade and being movable through a cutting stroke and a return stroke, and the cutting stroke may have a stroke length. A rotary member may be supported for rotation about a rotary axis. The saw may further include an adjusting assembly operable to adjust the stroke length of the spindle. Also, the saw may include a counterweight supported for movement relative to the housing, a movement of the counterweight substantially balancing at least a portion of movement of the spindle, and an adjusting assembly operable to adjust the movement of the counterweight.

Abstract: A reciprocating saw including a housing, a motor supported by the housing, a spindle mounted for reciprocation relative to the housing and having a front end for supporting a saw blade, the spindle being movable through a cutting stroke and a return stroke, the cutting stroke having a stroke length, and a pivot body interconnecting the spindle and the motor. The position of the pivot axis of the pivot body may be movable relative to the housing to change the stroke length of the spindle. A shock absorber may be operatively positioned between the motor and the front end of the spindle and may be at least partially mounted within the spindle.

Abstract: A support roller 15 for supporting a blade of a jigsaw having a scroller mode and a pendulum mode is disclosed. A roller support frame 18 supports the roller 15 and is mounted via a collar 32 to a drive shaft 10 of the jigsaw such that the blade support roller 15 rotates with the jigsaw blade as the drive shaft 10 is rotated in the scroller mode. The support frame 18 also pivots relative to the jigsaw housing to enable the blade support roller 15 to remain in contact with the jigsaw blade in the pendulum mode.

Abstract: A method of reciprocating a spindle of a reciprocating saw, including the steps of reciprocating the front end of the spindle along a first path during the cutting stroke and along the same first path during the return stroke, and adjusting the saw such that the front end reciprocates along a second path during the cutting stroke and along the same second path during the return stroke, the second path being oblique to the first path. The present invention also provides a method of reciprocating a spindle of a reciprocating saw, including the steps of moving the front end along a first cutting path during the cutting stroke, the first cutting path characterized by movement at least partially in a first cutting direction, returning the front end along a return stroke (e.g., along the first cutting path), and adjusting the saw such that the front end moves along a second cutting path during the cutting stroke, the second cutting path characterized by movement at least partially in a second cutting direction.

Abstract: A small reciprocating saw device is provided which is adapted for one hand operation and which enables delicate sawing or filing work to be carried out. An eccentric drive arrangement includes a motor mounted in a housing at one end of the device and a slender drive rod for the saw blade disposed in a gripping handle connected to the motor housing. Motor control switches are mounted on the motor housing and gripping handle.

Abstract: A reciprocating saw including a housing, a motor supported by the housing, a spindle mounted for reciprocation relative to the housing and having a front end for supporting a saw blade, the spindle being movable through a cutting stroke and a return stroke, the cutting stroke having a stroke length, and a pivot body interconnecting the spindle and the motor. The position of the pivot axis of the pivot body may be movable relative to the housing to change the stroke length of the spindle. A shock absorber may be operatively positioned between the motor and the front end of the spindle and may be at least partially mounted within the spindle.

Abstract: An adjustable reciprocating saw has the ability to adjust the orientation of the saw blade in relation to the rest of the tool. The saw blade can pivot about two transverse axes, one parallel with and one perpendicular to the reciprocating motion axis of the saw blade. The portions of the saw's housing which rotate relative to one another are attached with a rotating joint comprising a pin and groove design. Rotation locks selectively prevent rotation of the saw blade about each axis. The rotation locks can be released through simply depressing buttons on the saw. A rear internal bearing increases the durability and decreases the size of the saw. A keyless adjustable shoe is mounted to the saw.

Abstract: A reciprocating saw including a housing, a spindle mounted for reciprocating motion within the housing, a gear rotatably mounted within the housing, a wobble shaft rotatably mounted within the housing, a wobble plate rotatably mounted on the wobble shaft and connected to the spindle, and a clutch drivingly connecting the gear to the wobble shaft. The clutch includes a clutch driver rotatably positioned within the housing adjacent the wobble shaft, and the clutch driver includes a recess for insertably receiving a portion of the wobble shaft. The clutch driver can also include a relief ledge for providing clearance between the clutch driver and the wobble plate. The clutch can further include a first clutch disk connected with the gear and positioned between the gear and the clutch driver, and a second clutch disk connected with the clutch driver and positioned between the gear and the first clutch disk.