Abstract: A hair clipper or cutter is provided with an adjustment slider that adjusts the gap between an inner and outer blade. A yoke is attached to the inner blade. The adjustment slider may be configured with preset gap lengths and may be adjustable before, after, or during a hair cutting operation. A T-guide couples the adjustment slider to the inner blade to slidably move the inner blade relative to the outer blade. The yoke, inner blade, outer blade and/or T-guide may be magnetized to create an attractive or repulsive force between the inner blade and the outer blade.

Abstract: In certain embodiments, a personal care device can include a housing, a functional assembly attached to the housing, a motor disposed within the housing and operatively connected to the functional assembly to move one or more components of the functional assembly, and a switch configured to move between at least two states.

Abstract: A hair clipper with blade angle adjustment is provided, including a clipper housing defining a longitudinal axis and a cutting end, a clipper bladeset operationally connected to the cutting end and including a stationary blade and a moving blade configured for reciprocating laterally relative to the stationary blade. A cam follower is connected to the bladeset and associated with the clipper housing for rotation about a rotation axis relative to the clipper housing, and a bladeset angle control is associated with the clipper housing. A power transmission is member associated with the clipper housing, connected to the cam follower and constructed and arranged so that user manipulation of the bladeset angle control causes linear movement of the power transmission member and associated angular movement of the bladeset through rotation of the cam follower.

Abstract: A gardening trimmer may include: a first blade connected to a first cam member and configured to reciprocate in response to rotation of the first cam member; and a second com connected to a second cam member and configured to reciprocate in opposite phase to the first blade in response to rotation of the second cam member. The first cam member includes a first eccentric cam configured to revolve around a first rotation axis and is connected to the first blade at the first eccentric cam. The second cam member includes a second eccentric cam configured to revolve around a second rotation axis and is connected to the second blade at the second eccentric cam. Each of the first and second blades is configured to reciprocate along a plane including the first and second rotation axis.

Abstract: A tool has a housing. A blade bar projects forwards from the housing along a longitudinal axis. An electric drive motor drives the blade bar. At least one battery supplies the drive motor with electrical energy. The blade bar, the drive motor and the battery are mounted on the housing. The tool has a top handle arranged above a center of gravity of the tool, and a rear handle arranged behind the tool center of gravity. The battery is arranged on the housing at least mainly in front of the rear handle.

Abstract: An adjustable hair trimmer blade set is provided, including a blade chassis, a blade platform linearly displaceable relative to the blade chassis, a stationary blade secured to the blade platform, and a moving blade constructed and arranged for slidable linear reciprocation relative to the stationary blade in a direction of cutting action. An offset rod has at least one offset cam lobe and is rotatably engaged in the chassis along an axis generally parallel to the direction of cutting action. A retaining spring has at least one loop engaged by the offset rod for holding the spring in operational relationship to the chassis.

Abstract: The present invention may be used oscillate a movable blade of a clipper. A lever may be a drive finger attached to a rotator member and a motor lever arm attached to the rotator member approximately opposite the drive finger along a longitudinal axis. A rotator bearing cavity of generally cylindrical shape may be formed in the rotator member and may be sized for insertion of a rotator bearing. A bottom wall of the rotator bearing cavity may have an aperture sized to allow fluid to flow through the aperture adjacent a lever shaft inserted through the rotator bearing and the aperture. A motor end of the motor lever arm may have a motor end cavity therein with two opposed spaced apart side walls.

Abstract: A power tool has a drive motor and first and second tool members driven reciprocatingly by the drive motor in opposite directions, respectively. The first tool member is driven by a first connecting rod and the first connecting rod is connected to the first tool member by a first pivot joint arranged on the first connecting rod. The second tool member is driven by a second connecting rod and the second connecting rod is connected to the second tool member by a second pivot joint arranged on the second connecting rod. The first pivot joint is arranged on an end of the first connecting rod which end is facing the tool members. The second pivot joint is arranged on an end of the second connecting rod which end is facing away from the tool members.

Abstract: A hair clipper (1) comprises a replaceable blade block (3) having a comb-shaped stationary blade (5) and a comb-shaped moving blade (6) which is reciprocally movable in a widthwise direction of the hair clipper (1), a main body (2) having a motor (8) and a driving member (14) to transfer and to transmit a driving force of the motor (8) to reciprocal motion of the moving blade (6), and to which the blade block (3) is detachably attached, and a pressing mechanism (4) to press the moving blade (6) toward the stationary blade (5). The pressing mechanism (4) is provided on the main body (2) and has at least one contact portion (4b) which reciprocally moves in synchronism with a reciprocal motion of the moving blade (6).

Abstract: A reciprocating-type cutting blade device (1) has first and second driving bodies (15, 16) driven reciprocatingly in opposite directions. First and second cutting blade bodies (13, 14) are driven reciprocatingly by detachably engaging the first and second driving bodies (15, 16). Two detachable guide plates (11, 12) slidably hold these driving and cutting blade bodies. A first boundary (Q1) is formed between engaging portions (31, 33) of the first cutting blade body (13) and the first driving body (15), and a second boundary (Q2) is formed between engaging portions (32, 34) of the second cutting blade body (14) and the second driving body (16). The boundaries intersect only at points in a planar view, and the engaging portions (31-34) of the cutting blade bodies (13, 14) and the driving bodies (15, 16) maintain this state of intersection over a whole stroke of reciprocating motion.

Abstract: A trimmer having a first cutting blade and a second cutting blade. A first drive gear assembly cooperates with the cutting blades so that as the first drive gear assembly rotates around a first axis, the cutting blades are caused to reciprocatingly move in first and second paths to produce a cutting action. A second drive gear assembly has a second drive gear that has teeth in mesh with teeth on the first drive gear assembly. The second drive gear is rotatable around a second axis to cause the first drive gear assembly to be rotated in the first rotational direction. A powered drive assembly rotates the second drive gear around a second axis in the one rotational direction. The teeth on the first drive gear assembly are defined by a first bevel gear. The second gear is a bevel gear in mesh with the first bevel gear.

Abstract: A longer life and maintenance-free of a cutter for cutting a linear member are realized. A fixed blade (1) and a rotating blade (2) have through holes at the center of a disk, respectively, and shearing blades are formed on circumferential surfaces (1a) and (2a) of the respective through holes. The fixed blade (1) and the rotating blade (2) are held rotatably around the center axes of the through holes (free rotating direction) by a fixed blade holding member and a rotating blade holding member, not shown, respectively. A linear member (C) to be cut is inserted through the through holes of the fixed blade (1) and the rotating blade (2) and the center axis of the rotating blade (2) is displaced so that a centroid (6) of the rotating blade (2) becomes an oval so as to cut the linear member (C).

Abstract: A trimmer having first and second cutting blades. The first and second cutting blades are mounted so that first and second flat surfaces, respectively thereon, face and are substantially parallel to each other. A drive causes at least one of the first and second cutting blades to move relative to the other of the first and second cutting blades. At least one fastening assembly has first and second facing shoulders between which the first and second cutting blades reside. The at least one fastening assembly further has at least one biasing element that produces a force that biasably urges the first and second flat cutting blade surfaces towards each other.

Abstract: Disclosed is a package for containing a battery-powered device having both a power switch and a safety button, where both the power switch and the safety button must be actuated in order to turn the product on. The package has integral means to maintain the safety button in a depressed position, as well as means for a user to actuate the power switch while it is in the package in order to observe the operation of the device. Another embodiment package includes means to permit access to the safety button and a power switch of the device while the device is in the package in order to observe the operation of the device.

Abstract: A hair clipper includes a motor with a rotary output shaft, a bladeset including a stationary blade and a moving blade configured for reciprocation relative to the stationary blade, a drive system configured for transferring motion from the output shaft to the bladeset, and including a driving member moving linearly along an axis transverse to a longitudinal axis of the clipper.

Abstract: The invention relates to an eccentric drive (1) and especially to an eccentric drive for a portable handheld work apparatus having a wheel (3) driven by a drive motor (2). A cam (5) is eccentrically fixed to an end face (4) of the wheel (3). The cam (5) is held by a connecting rod (6) and cylinder-shaped roller bodies (7) are mounted between the connecting rod (6) and the cam (5). The roller bodies (7) have axial ends (8) which engage in an annular slot (9) of the wheel (3). A holding element (11) is disposed on the cam (5) and limits the axial play of the roller bodies (7).

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 hand-held power working machine in which the clipper blades thereof can be easily dismounted for the exchange or grinding thereof in a way that minimizes the possibility of damage to the power transmission device or the clipper blades in the course of such dismounting. Also, conventional integrated type clipper blades can be mounted thereon. The power working machine includes a working portion provided with a pair of clipper blades and a power transmission device for transmitting a reciprocating driving power to the working portion, wherein the power transmission device includes a pair of intermediate reciprocating driving plates which are couplingly interposed between a pair of reciprocating movement-guiding arms, to be driven by a driving rotor, and the pair of clipper blades.

Abstract: A combination of hair combing trimmer, shaver, and head side profile cutter includes a main body and a cutting head. The main body has a power supply and transmission unit mounted therein and defines a reservoir therein for receiving hair clippings. The cutting head, being selected from the group consisting of a hair combing trimmer, a shaver, and a head side profile cutter, includes a housing, a blade mounted in the housing, and a comb mounted on the cutting head for cooperation with the blade for trimming hair. The primary feature of the present invention resides in that the combination device is made in a separable form that allows a first cutting head to be integrally removed from the main body to be replaced with a second cutting head.

Abstract: A clipper comb is comprised of a handle having a motor, responsive to an activation button depression, disposed therein. A cutting assembly, having a comb and a cutter with a plurality of blades such that in a normally relaxed state each blade overlies a comb tooth, is removably attached to the handle. Motor activation causes the blades to cut hair held within the openings defined between each comb tooth. A dual-topped cam assures blade alignment. An alternate embodiment comprises a single blade that cuts across all tooth opening upon motor activation. A deadman switch assures blade alignment.

Abstract: A motor-driven hedge shear has a housing, a pair of hedge shear cutters extending in a longitudinal direction outwardly of the housing, means for reciprocatingly driving the hedge shear cutters in opposite directions and including a motor shaft, a coulisse transmission provided between the means and the hedge shear cutters, cutter holders provided for supporting the hedge shear cutters and having coulisse ears, the coulisse transmission including toothed gears provided with crank pins engaging in the coulisse ears, a central shaft supporting the toothed gears and having ends rotatably supported in the housing. Two of the toothed gears of the coulisse transmission are arranged on the central shaft so as to be axially spaced from one another, and have facing sides provided with crank pins formed as eccentrically arranged circular discs.

Abstract: A power working machine in which maintenance work is improved by having the heads of case fastening and motor fastening screws covered by the gasket provided between the mount base and the transmission cover. This prevents dirt load grease from clogging the heads of such screws. The transmission cover is also provided with through holes for the motor fastening screws and the case fastening screws, respectively.

Abstract: An interlock structure of the cable type for stacked plural drawer cabinet structures which limits the opening of drawers to a single drawer and prevents plural drawers being opened at the same time. An elongate base or frame is mounted in the cabinet adjacent to the drawers. The frame supports plural (one for each drawer) eccentric blocker elements and adjacent follower elements and supports at one end a provided slider element having limited movement. A cable is attached at one end to the slider and at the other end to the frame with an intermediate loop which provide two cable courses, one of said courses threaded on the successive blockers and the other course operably threaded over the respective adjacent followers maintaining the respective blockers and followers in operative engagement. The blockers are moved by interference engagement by a selected drawer.

Abstract: A blade assembly for electric hair clippers includes a stationary blade having a plurality of teeth arranged in a row, and a reciprocating blade having a plurality of teeth which complement the stationary blade teeth. A cam eccentric which is turned by a shaft attached to a motor moves the reciprocating blade in a back-and-forth motion through a set operating stroke, determined by the lateral distance the cam moves during its rotation. A guide bar maintains the reciprocating blade in a blade guide parallel to the stationary blade throughout the operating stroke, but not through the maximum stroke the blade can travel when the head assembly is removed from the handle for cleaning or other servicing. Anti-lock ribs or an anti-lock bar are provided on the blade guides to engage the guide bar throughout the maximum stroke distance, thereby maintaining the reciprocating blade parallel to the stationary blade throughout the maximum stroke.

Abstract: A hair trimmer is provided having a housing provided with a stationary cutter and a cutter which can be driven relative to the stationary cutter, the housing comprising a comb attachment which is adjustable relative to the housing. The housing is provided with a rotatable annular adjusting element which forms part of a spiral-groove coupling between the housing and the comb attachment.

Abstract: A shearing handpiece rear section for connection between a drive tube assembly and a handpiece front section which includes a cutter and driving fork, and comprising an outer casing, a tubular bushing threaded therein and connected with a partly encircled tubular joint by a circlip to permit relative rotation and prevent axial displacement between the bushing and the joint, a drive shaft extending through the casing and journalled at opposite end portions in bearings supported in respective ones of the bushing and the joint, a crank head upon a forward end of the shaft and provided with clearance from a forward end of the bushing, and a drive cog upon a rearward end of the shaft and abutting the bearing in said joint, so that with axial thrust on the handpiece contact of said crank head with said bushing is avoided.

Abstract: An improved method and apparatus for preparing a body site prior to the application of medical treatment at the site is disclosed. The apparatus and method provide for the use of a hand-held, electrically-energized clipper having a disposable cutter head for removal of body hair at the site. An economical, disposable cutter head is described.

Abstract: A precision hair clipper for cutting the hair of a subject to a uniform length which comprises a housing defining a flow chamber attachable to a vacuum hose. At the inlet of the housing a pair of reciprocating blades are configured to maintain a constant and equal flow of air through the chamber. Each of the blades is symmetrical to the other and features a row of parallel, sharp-edged slots. The row of slots of each blade is slanted in opposite direction to the row of the other blade so that their lateral oscillation results in a plurality of criss-crossing shearing edge action. The blades are driven by a pair of oppositely phased eccentric cams engaging openings in the blades. Selectable spacing of the clipper in relation to the subject's scalp is provided by a series of snap-on adjustable spacers.

Abstract: The disclosure is directed to an improved electric hair clipper of a type with a pivotal head portion, having a comb plate for comb-cutting, in which a blade unit is arranged to be slidable for releasable attachment with respect to the head portion, in a longitudinal direction intersecting at right angles with a pivoting direction of the head portion through an engaging and sliding arrangement including sliding projections and corresponding guide grooves in which the sliding projections are fitted for sliding movement, so that no excessive loads are applied to a pivotal axis or pivotal angle restricting portion of the head portion, while the blade unit can be readily detached without having to touch the blade edge with a finger.

Abstract: The present invention is a cutting unit having multiple sets of tandem blades; each set being composed of a first toothed blade moved reciprocatingly in a cutting motion relative to a second tooth blade. The blades are preferably curved.

Abstract: A hair clipper blade set comprises a fixed blade assembly having a forward edge with a series of teeth extending therealong and a movable blade assembly having a forward edge with a series of teeth extending therealong. The movable blade assembly is supported against the fixed blade assembly for reciprocative movement across the fixed blade assembly with the teeth of the movable blade assembly operatively cooperating with theteeth of the fixed blade assembly to cut hair. The fixed blade assembly is of laminated two-piece construction and includes a molded blade carrier and a machined blade member, the carrier and blade being secured together in assembled relation. The laminated fixed blade assembly may be generally T-shaped in construction to permit use of the blade set within relatively confined areas, such as the nostrils or ears, to remove superflous hair. In this construction, the associated movable blade assembly is likewise T-shaped, and may also be of laminated construction.

Abstract: Disclosed herein is a hair clipper including a housing, a motor located in the housing and including a shaft having a drive member thereon, and a blade set connected to the housing. The blade set includes a lower blade connected to the housing, and a movable blade assembly including a thin planar movable upper blade member and a shoe member including a planar body having a groove formed in its upper surface, a notch therein, and laterally spaced wall portions on opposite sides of the notch and extending upwardly from the upper surface. The movable blade assembly also includes a yoke member secured between the upper surface of the movable blade member and the shoe member, the yoke member including first and second laterally spaced walls extending upwardly through the notch and being engaged by the drive member to cause reciprocating movement of the movable blade assembly relative to the fixed blade.

Abstract: An oscillating cut-out tool used for removing windshields from a vehicle. The tool designed to cut through urethane or similar types of material used in securing a vehicle windshield in a windshield frame.

Abstract: A comb is removably mounted in a multicompartmented housing, a razor moves in a slot in the comb driven by a motion converter transmitter activated by a sinusoid grooved transmission guide mounted on the rotor shaft of the motor, a tie binder is used to close the housing.

Abstract: A hand-held electrically energized hair trimming appliance is disclosed which is adapted to alternatively utilize a demountable clipper assembly or a demountable trimmer assembly. The demountable trimmer assembly includes an extending segment for supporting a trimmer cutter assembly at a location displaced from a housing of the appliance for enhancing user visibility when trimming mustaches, hair around earlobes, and the like.

Abstract: A hair clipper is arranged to alleviate one cause of pseudofolliculitis. The hair clipper comprises a motor for reciprocally moving a first cutter against low-lying facial hairs causing these hairs to become erect for cutting above the skin line between the moving first cutter and a stationary second cutter.

Abstract: There is disclosed herein a battery operated power grass shear wherein a fixed blade and a superimposed laterally oscillating movable blade have forwardly projecting, laterally spaced cutting teeth, the planes of said blades being tilted convergently relative to each other in the forward direction, the teeth of the upper and lower blades contacting each other only at the cutting edges thereof during cutting movements, and each tooth of the movable blade beginning its cutting stroke at a different time in each cutting cycle.

Abstract: Disclosed herein is a hair clipper comprising an outer housing of electrically insulating material, a motor located in the housing and including a field structure, an armature structure including a shaft, and bearing assemblies spaced axially of the armature structure and engaging the armature structure and the field structure for supporting the armature structure for rotation relative to the field structure, each of said bearing assemblies including a bearing and a bearing sleeve fabricated of electrically insulating material and located to isolate the bearing from one of the armature structure and the field structure, and screws mounting the field structure from the outer housing.

Abstract: The single-toothed blade is pivoted at its rear end and driven at its middle section in arcuate reciprocation over the teeth of a fixed base plate by an electric motor. The blade and the slide of the crank-slide blade drive mechanism comprise the wear parts of the sickle-shear and as a subassembly is readily detachable from the crankpin for rapid replacement without the use of tools.

Abstract: This invention teaches a convertible portable electric tool having a common power housing and different operating tool output pieces which can be releasably secured to said power housing without the need of any tools. Each of the tool output pieces has a stationary element and a movable element supported by the stationary element. The power housing has an exposed drive element which can cooperate with and drive the movable element when the statonary element is properly positioned relative to the housing. The stationary element in turn is sized to cooperate with the housing to cover the exposed drive element and be accurately positioned and held in place against the housing. Flexible fingers cantilevered integrally from the housing have free end flexture parallel to the stationary element, and further have projections on the finger ends that interlock with the positioned stationary element to hold it operatively in place relative to the housing.

Abstract: A battery powered grass shear having improved upper and lower shear blades with improved cutting and durability characteristics and which require less power to operate. The lower shear blade, which is fixed to the housing of the battery powered grass shear, is provided with a forwardly and upwardly extending forward portion provided with transversely spaced apart cutting teeth. The upper shear blade, which is reciprocated relative to the lower shear blade, is formed of a comparatively thin, heat treatable, resilient steel and is normally flat when in a non-stressed state. The upper blade, when assembled to the lower blade is bowed upwardly and the cutting edges of the spaced apart teeth on the upper blade intersect the cutting edges of the spaced apart teeth on the lower blade and make point to point contact throughout the length of the blade as the blades are reciprocated. The cutting surfaces are preferably heat treated to an equal hardness.

Abstract: Pairs of planar cutting blades with angularly related cutting edges such as are used in grass shears, and the like, and which are mechanically actuated to move relative to each other and to cut by a scissors-like action are formed in a manner such that during each cutting action the contacting cutting point between each pair of coacting edges moves at a uniform speed. The improved blade construction finds application in shears, particularly cordless, i.e., battery, grass shears, by more nearly equalizing incremental power requirements; by reducing the maximum input power requirements; and by increasing time of performance between battery recharging at a given forward advancement speed of the shear.