Abstract: A releasable footplate assembly for a jigsaw includes a shaft portion having a handle, a screw boss having a yoke, a base portion having a bridge portion through which the screw extends into the screw boss and a bridge plate, attached to the screw, releasably engaging the bridge portion.

Abstract: An attachment for a reciprocating saw comprises an offset member mounted on the drive head of the saw and comprising a lateral extension which holds a saw blade clear of the saw body The attachment also comprises a guard member having a planar surface adapted to engage a wall, and a slot through which the saw blade extends. The guard member is pivotally mounted on the saw body at a point spaced from the drive head. The attachment facilitates making a saw cut in a surface adjacent an inside corner.

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 includes a housing having an upper surface and a side surface, and a blade holder supported on the end of a reciprocating saw bar. The blade holder is adapted to support a saw blade such that the resulting cutting plane lies outboard of one of the housing's surfaces, while a reference plane, orthogonal to the cutting plane and intersecting a cutting edge of the blade, lies outboard of the other of the housing's surfaces. Preferably, each surface includes a flat, and the blade's cutting edge is supported proximate to an intersection of the planar extensions of the flats. A wobble drive assembly including a single wobble plate with an integral counterweight advantageously permits a relatively outboard position of the saw bar on the housing to reduce bending moments on the bearings supporting the saw bar.

Abstract: A wedging clamp assembly is provided for retaining a saw blade. A housing defining a vertical cavity therein is included in the assembly. The cavity includes a top end and a bottom end tapered with respect to the top end. Extending through a bottom end of the housing is a saw blade passageway included in the bottom end of the cavity. Disposed inside the cavity is a saw blade retention mechanism. A piston is further disposed within the cavity. The saw blade retention mechanism is configured for lockingly retaining a saw blade upon insertion into the passageway, thus, causing the piston to be biased against the bottom end of the cavity. At least one locking element is further included in the saw blade retention mechanism, and such locking element is disposed in the cavity for engaging the bottom tapered end. A wedging clamping force exerted by the at least one locking element is applied to the saw blade, and such force renders the saw blade immobile relative to the housing.

Abstract: A pendulum scroll saw including a lifting rod (1) for securing a saw blade (2), and a motor-driven entrain member (3) for reciprocating the lifting rod (1) with the lifting rod (1) having a guide surface (4) connectable with the entrain member (3), and with a contact region of the guide surface (4) with the entrain member (3) having a curved profile that deviates from a straight line.

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 powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member is adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.

Abstract: A line-of-cut indicator for use with a cutting tool including a pointer element that may be moved between an open position substantially in front of the footplate of the cutting tool and a closed position substantially behind the front of the footplate of the cutting tool. The pointer element may be moved between the open and closed positions by rotating or sliding. The pointer element may provide one or multiple reference points for the line-of-cut.

Abstract: The invention is based on a saw, in particular a hand-guided saber saw, which has a drive unit (10) by way of which a tool (12), in particular a saw blade, can be driven, and with a tool guide mechanism (14), by way of which the tool (12) can be guided laterally by guide elements (16, 18). It is proposed that the tool guide mechanism (18) has a control motor (20), by way of which a spacing between the guide elements (16, 18) can be adjusted to a tool thickness.

Abstract: Reciprocating cutting tools (1, 90, 100) may include a drive source (11) for reciprocally driving a blade (B). The drive source may also drive a blower (13) in order to generate an air stream. An air channel (50, 56, 50, 70, 85, 80) may guide the air stream to a position adjacent to the blade or a workpiece (W) that will be cut by the blade. Further, a chip collector nozzle (57) may draw or suction cutting chips away from the workpiece that has been cut by the blade.

Abstract: A releasable footplate assembly for a jigsaw includes a shaft portion having a handle, a screw boss having a yoke, a base portion having a bridge portion through which the screw extends into the screw boss and a bridge plate, attached to the screw, releasably engaging the bridge portion

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: Reciprocating power tools may include a rotary member or crank disk (12) that is rotatably driven by a motor (M). The rotary member (12) may be operable to selectively rotate in a first direction or a second direction. A revolving member or connection (crank) pin (14) may be coupled to the rotary member (12) and have a longitudinal axis that is parallel to, but displaced from, the rotational axis of the rotary member. Preferably, the revolving member (14) revolves or orbits about the rotational axis of the rotary member when the rotary member (12) rotates. Further, the revolving member (14) is preferably movable relative to the rotary member (12) so as to change the distance between the revolving member (14) and the rotational axis of the rotary member (12). A motion conversion mechanism (13, 17) may convert the revolving movement of the revolving member (14) into linear reciprocating movement of a working tool (B).

Abstract: A handheld power fret saw (10) having a power fret saw blade (33), which can be clamped releasably between two arms (122, 222), on their ends, that are preferably formed of a U-shaped bracket (22) comprising tubing, the end of one of the arms (221, 222) carrying a handgrip (13), is used especially universally with high precision because the power fret saw (10) can be clipped releasably, in particular in the manner of a bayonet mount, to a sawing table (37), and together with the sawing table (37) the power fret saw (10) forms a portable handheld power tool, which when the sawing table (37) is secured to a workbench or the like serves as a stationary tool.

Abstract: A reciprocating saw, such as a compass (jigsaw) saw or similar saw, has a blade clamp for securely clamping blades having different dimensions. The clamp has a blade seat with bearing surfaces for at least two adjacent, axially extending surfaces of the saw blade shank, and a stop surface for the rear end of the blade shank. A hand-operable clamping element is mounted on the blade seat and is pivotal about an axis between a releasing position and a clamping position. A spiral clamping surface is formed on the clamping element and has a constant opening angle. Through the use of a spiral clamping element with a constant opening angle, the clamping element maintains the same clamping angle with saw blade shanks of varying dimensions.

Abstract: A double sided saw blade for operable engagement with a powered drive unit such as a reciprocating saw, comprises a thin elongated metal blade having opposed longitudinal side edges provided with first and second parallel saw tooth cutting edges. A handle element is secured to the blade and includes a mechanism for securing the handle to the powered drive unit.

Abstract: Two different eccentric shaft portions are formed on a secondary shaft. A contact plate has two different contact portions which are selectively brought into contact with two eccentric shaft portions of the secondary shaft. The contact plate is attached to a guide sleeve. A plunger is slidably coupled in the guide sleeve. A saw blade, attached to a front end of the plunger, causes an orbital motion according to a phase difference between two eccentric shaft portions regardless of attached direction (i.e., normal or upside-down) of the saw blade.

Abstract: A blade adapter for a reciprocating-type saw permits non-standard blades to be used in the saw. The blade adapter is sized and configured to be fit inside of a blade clamp of the saw, and includes an interior perimeter which accepts the shank of a non-standard saw blade. The blade adapter positions the saw blade inside of the blade clamp so that it can be clamped therein for cutting. It is simple to use and easily manufactured.

Abstract: Blade clamps (26, 110) may reliably secure blades (22) to reciprocating power tools (10). The power tools may include a reciprocating drive shaft (24) partially extending from the tool housing (12). A first end of a rod (37, 112) may be attached to the drive shaft. A second end of the rod may include a blade slot (37a, 112a) defined to receive the blade so that the longitudinal axis of the blade aligns with a longitudinal, reciprocating axis of the drive shaft. An aperture (37b) may be defined substantially perpendicular to the first blade slot and may communicate with the blade slot. A sleeve (33, 115) may be rotatably mounted on the rod so as to pivot between an initial locking position and a blade replacement position. A cam surface (33c, 116) is defined on an inner surface of the sleeve. A stopper (33e, 116d) projects from the cam surface or the rod and defines the blade replacement position.

Abstract: A cutting tool with a linear oscillating drive has a handle body (1) and a knife (3, 4) which is guided therein and is displaceable in an oscillating manner in the longitudinal direction, the knife (3, 4), by means of a knife holder (4), being detachably connected via a clamping member to a transmission element, arranged in the handle body (1), of the linear oscillating drive. Since the knife holder (4) is cohesively connected, in particular sealed, together with a knife shaft (31), the cutting tool complies with the hygiene regulations for use in the foodstuffs sector.

Abstract: A pruner attachment apparatus includes a body releasably attachable to a shoe of a power tool of the type having a reciprocating saw blade. The body includes a front face for engaging a workpiece. The pruner attachment apparatus further includes a hook member for engaging the workpiece. The hook member is laterally spaced from the saw blade of the tool and is mounted to the body for movement along a path between a first position and a second position. The path includes an upper curvilinear portion configured such that movement of the hook member from the first position to the second position positions the hook member completely behind an imaginary line in a common plane with the front face. A biasing mechanism biases the hook member to the second position.

Abstract: An apparatus having a foot, a reciprocating saw and a housing. Between the foot and the housing there are means for releasable mounting the foot on the housing, characterized in that the releasable mounting means have a first coupling member connected to the foot and, co-acting therewith, a second coupling member connected to the housing. The coupling members can be carried from a disconnected to a connected position by a relative displacement between the foot and housing.

Abstract: The invention relates to a powered reciprocating saw, in particular to a pruning saw. To simplify use of the saw a clamping mechanism is provided which holds an object in position while it is sawn. The clamping mechanism is mounted at the front portion 4 of the housing of the saw near the saw blade 20. The clamping mechanism comprises: a slide element 30 for sliding movement in cutting direction C of the saw blade, a supporting member 30; and a clamping arm 40 being rotatably mounted on the slide element 30, by means of a one way rotary clutch 42 such that the arm can freely rotate in one direction only, in which direction the clamping arm 40 moves towards the support member 30 to clamp an object therebetween in a clamping position below the saw blade for sawing it. When the saw is in use, it vibrates due to its reciprocating parts.

Abstract: A cutting tool comprises an elongate housing for slidably receiving a cutting blade. The cutting tool is in the form of an attachment for an electric jigsaw, and the housing incorporates a pair of clamping brackets for mounting on a footplate of the jigsaw. Each bracket is provided with a mounting flange for clamping onto the footplate when a compressive force is applied to move the clamping brackets towards each other. The cutting blade is driven by the jigsaw in a reciprocating manner. A workpiece support extends from a free end of the housing, and has a support member arranged to engage a workpiece in a stabilizing manner adjacent the free end of the housing when cutting. The support member is fixed to a guide member which extends parallel to and adjacent the cutting blade where it protrudes from the free end of the housing.

Abstract: An electrical manual power saw includes a machine housing that has a housing shaft and a housing head (102) holding an interchangeable tool, and an electrical drive for driving the tool in an oscillating reciprocating motion. The housing shaft, for the sake of attaining an ergonomically defined gripping position in the vicinity of an on/off switch, has a rod-like shape, and in the transition region between the rod-shaped housing shaft and the housing head, a construction is provided. The on/off switch is disposed laterally offset on the housing head, below the axis of the shaft in such a way that when the constriction is grasped by a hand of a user the thumb of the grasping hand rests on its actuation knob.

Abstract: A pruner attachment apparatus for a power tool having a body, a shoe extending from the body, and a saw blade interconnected to the body for reciprocating motion. The pruner attachment apparatus includes a mounting member, a hook member and a biasing mechanism. The mounting member is releasably attachable to the shoe. The hook member is carried by the mounting member for movement between a first position and a second position. The biasing mechanism biases the hook member to the second position.

Abstract: A saw blade, saw and method for making circular openings in construction materials. The saw is adapted to be attached to a handle, motor and holder assembly so that an up and down stroking motion can be provided to the saw blade. The saw blade is concave in cross-section along substantially its whole length, and the degree of curvature of the blade is the same throughout the length of the blade that is concave in cross-section. The degree of curvature is that necessary to make a circular opening of the size desired. To make the opening, a circle of the size of the opening desired is drawn on the construction material, a hole is drilled in the construction material inside and abutting the circle of a size slightly larger than that necessary to receive the blade, the blade is inserted in the hole, and the cutting edge of the blade is moved around the circle.

Abstract: A reciprocating tool includes a rotatable drive gear. A pin connected to the drive gear is eccentric with respect to an axis of rotation of the drive gear. A plunger extending perpendicular to the pin is movable upward and downward. A connector fixed to the plunger engages the pin. A cam is provided with the pin at an eccentric position. A cam holding member has an eccentric recess accommodating at least part of the cam. The cam holding member is connected to the drive gear for rotation responsive to rotation of the drive gear. A first engagement portion is provided on the cam. A second engagement portion is provided on the cam holding member. The second engagement portion is engageable with the first engagement portion. Engagement between the first engagement portion and the second engagement portion can be canceled to allow rotation of the cam relative to the cam holding member.

Abstract: A reciprocating cutting tool (1, 50) includes a slider (14, 51) that reciprocates linearly in a first direction. A rod or blade holder shaft (21) is movable with the slider (14, 51) in the first direction and is supported by the slider (14, 51) such that the rod or blade holder shaft (21) is movable in a second direction that is different from the first direction. A blade (B) can be mounted on the rod or blade holder shaft (21). The rod or blade holder shaft (21) is movable in the second direction independently of the movement of the slider (14, 51) in the first direction.

Abstract: A scotch yoke mechanism for converting rotational movement into reciprocating linear movement and having an adjustable stroke length. The scotch yoke mechanism includes a stroke length toggle eccentrically connected to a cam such that the stroke length toggle may assume one of first and second positions. The first position defines a first stroke length which is shorter than a second stroke length defined by said second position. Rotational movement of the cam causes the stroke length toggle to assume the first position when the cam is rotated in a first direction to assume the second position when the cam is rotated in a second direction opposite the first direction.

Abstract: A jigsaw apparatus includes a motor housing having a motor drive, a blade reciprocally powered by the motor drive, and a blade support arrangement that includes an arm that extends to the rear (or side) of the motor housing, the arm having a free end that supports a guide block. A base positioned at the lower end of the motor housing has sockets or like receptacles that receive the arm at selected orientations. The blade is specially configured, having an opening at its lower end for receiving a fastener and a slider block. The slider block travels in a vertical bore of the guide block.

Abstract: A reciprocating saw, such as a compass (jigsaw) saw or similar saw, has a blade clamp for securely clamping blades having different dimensions. The clamp has a blade seat with bearing surfaces for at least two adjacent, axially extending surfaces of the saw blade shank, and a stop surface for the rear end of the blade shank. A hand-operable clamping element is mounted on the blade seat and is pivotal about an axis between a releasing position and a clamping position. A spiral clamping surface is formed on the clamping element and has a constant opening angle. Through the use of a spiral clamping element with a constant opening angle, the clamping element maintains the same clamping angle with saw blade shanks of varying dimensions.

Abstract: A tool-less blade clamps (10, 50) may include a rod (2, 52) having a slot (2a, 2c, 52c) and a guide slot (2b, 52b) formed substantially perpendicularly to the slot (2a, 2c, 52c). A control member (20, 56) may be slidably disposed within the slot (2a, 2c, 52c) and a spring (21, 57) preferably biases the control member (20, 56) towards a forward portion of the slot (2a, 2c, 52c). The rod (2, 52) rotatably supports a sleeve (11, 53). Preferably, the sleeve (11, 53) being prevented from axially displacing with respect to the rod (2, 52) when the sleeve (11, 53) rotates about the rod (2, 52). An L-shaped slot (16, 53a) may be formed in the sleeve (11, 53) and may have a blade lock slot (16b, 53ab) disposed substantially perpendicularly to a blade lock control slot (16a, 53aa). The control member (20, 53) may include a pin (22, 55) that extends through the guide slot (2b, 52b) and travels within the L-shaped slot (16, 53a).

Abstract: A powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member is adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.

Abstract: The flush cut power saw comprises a framework having a base plate with a saw blade slot extending through two risers located at one end of the base plate. At least two rods slidably receive a movable housing for supporting a motor at a location above the cutting blade. The motor is secured to a transmission to convert the rotary motion of the motor to a reciprocating, linear motion. The transmission is connected to a saw blade mounting apparatus, which linearly reciprocates a cutting blade, which adjustably extends below the mounting plate. The cutting blade may be adjustably positioned with an adjustable stop for depth in vertical alignment with the framework. The transmission reciprocally biases the cutting blade, enabling the cutting blade to reciprocally travel linearly in relation with the movable housing, to complete a cut flush with an adjoining surface, while controlling the depth of cut.

Abstract: A saber saw having a shoe pressing against a workpiece for holding an entire device at its given position during cutting operation. A saw blade extends from a main body and is reciprocally moveable in the extending direction. The shoe is pivotally supported to a shoe support member detachably fixed to a shoe adapter movably held in the main body. A torsion spring is interposed between the shoe and the shoe support member for urging an upper portion of the shoe toward the main body. The rear end of the shoe adapter is provided with a rubber damper in pressure contact with the main body.

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 reciprocating saw comprising a housing, a motor, a spindle movably supported within said housing and having a front end adapted to support a saw blade, a drive assembly, and an adjustable shoe assembly. The adjustable shoe assembly includes a shoe, a shoe support member pivotally supporting the shoe, a locking member pivotally supported by the housing, and a lever connected to the locking member.

Abstract: A clamping mechanism for a power tool which has a bayonet washer rotatably mounted on the end of a plunger so that the bayonet washer is rotatable between an open and a closed position. The bayonet washer is biassed towards the closed position by a torsion spring, but is latched in the open position when no operating member is positioned in the clamping mechanism. When an operating member is inserted into the mechanism through a slot in the bayonet washer and into engagement with the plunger, the washer is automatically released from the open position and rotates under the biassing force of the torsion spring to the closed position whereupon the operating member is locked into the power tool.

Abstract: A reciprocating saw includes a hexagonal head bolt (11) for releasably tightening a guide shoe (6) and a manually-operated bolt-tightening lever (15) fitted over the bolt (11). The bolt-tightening lever (15) includes a lock plate (17) which has at its front end a socket hole (22) that can fit around the head (14) of the hexagonal head bolt (11) and has a serrated edge with twelve notches each having an interior angle of 120 degrees. The lock plate (17) has at its rear end four engaging teeth (23) at intervals of four degrees around axis O of the hexagonal head bolt (11). The shape of the outer portion (18) is such that the outer portion can cover the lock plate (17). Moreover, the outer portion (18) has on its top side a circular hole (24) in which the head (14) of the bolt (11) can be fitted.

Abstract: A connector assembly for connecting a surgical saw blade to a housing of a surgical instrument. The connector assembly allows a surgeon to align, insert and lock the surgical blade in the collet of the surgical instrument without any special tools, and further provides a stable and robust platform for mounting the surgical saw blade thereto. The connector assembly includes a tapered conical shaped sleeve which is positioned within the housing and rotatable in both a clockwise and counter-clock wise direction. A pair of grippers are mounted within the connector assembly and engage the surgical saw blade when the tapered conical shaped gripper sleeve is rotated in a first position. A sternum guard is also mounted to the housing.

Abstract: A powe tool includes a saw blade ejection mechanism for a saw blade clamping arrangement of a power tool. The power tool includes a housing, a drive shaft mounted for reciprocating motion relative to the housing and a saw blade. The clamping arrangement is operative for releasably connecting the saw blade with the drive shaft. The saw blade ejection mechanism includes a mounting member and an elongated plunger. The mounting member in adapted for attachment to the drive shaft. The elongated plunger is connected to the mounting member for movement between a first position to a second position for ejecting the saw blade from the saw blade clamping arrangement.

Abstract: A reciprocating saw 11 comprises an output shaft 21 mounted for reciprocal motion in a housing 13. A counterweight 27 is mounted in the housing for reciprocal movement relative to the output shaft. A first drive 37 is connected between a motor and the output shaft for reciprocally driving the output shaft. A second drive 39 is connected between the motor 19 and the counterweight for reciprocally driving the counterweight. The second drive 39 preferably comprises a pivot arm 41 pivotally mounted about an axis transverse to the output shaft for receiving at a first location a reciprocating input in a first direction 40 and for producing at a second location a reciprocating output in a second direction 42 different from the first direction. The first and second drives provide a compact, low vibration, relatively simple, counterbalanced drive train for the saw.

Abstract: A coping saw attachment for a hand held power jig saw which is capable of being quickly and easily attached to a standard hand held power jig saw. The coping saw attachment for a hand held power jig saw generally includes a substantially “c-shaped” coping saw blade support member which supports a standard coping saw blade, a handle which is removably attached on either side of the substantially “c-shaped” coping saw blade support member and a coping saw blade adapter which facilitates the attachment of a standard coping blade into a hand held power jig saw blade chuck.

Abstract: A saber saw includes a housing. A motor is contained in the housing. A second shaft is rotatably connected to the housing, and is rotated by the motor. A plunger connected to the housing is used for holding a saw blade. The plunger is free to reciprocate. A motion converting mechanism provided between the second shaft and the plunger operates for converting rotation of the second shaft into reciprocation of the plunger. A guide member is connected to the housing, and has a track surface. The plunger is moved along the track surface of the guide member during reciprocation of the plunger.

Abstract: A blade is inserted into a slit which extends in an axial direction of a plunger. A bore extends in a direction normal to the axial direction of the plunger and merges with the slit. A locking pin is slidably disposed in the bore. A blade holder is coupled around the plunger and slidable in the axial direction of the plunger. The blade holder shifts in an axially forward direction to generate a pushing force applied to the locking pin. The locking pin engages with a hole of the blade. Furthermore, the blade holder shifts in an axially rearward direction to release the pushing force applied to the locking pin. The locking pin disengages from the hole of the blade.

Abstract: A tool-less guide shoe that includes a post is received in a hole formed in the nose section of a power saw. The post includes laterally extending locking slots and a longitudinal extending positioning slot. At the upper end of the post, a stop plate is formed at the end of the positioning slot and adjacent to a removal slot. A locking plate is used to secure the guide shoe in a position by fitting in the locking slot. The guide shoe is removed from the saw by placing the locking plate adjacent the stop plate and rotating the post approximately 90° into the removal slot.

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, interpose between a pair of opposing tracks formed in an axially elongated groove formed on the counterweight.

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.