| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 030208000 | Reciprocating and/or oscillating blade | 48 |
| 20090126201 | Bladeset for a hair cutting apparatus - A bladeset for a hair clipper includes at least one stationary blade having a plurality of stationary blade teeth, and at least one moving blade having a plurality of moving blade teeth and being configured for laterally reciprocating relative to the at least one stationary blade for cutting hair therebetween, the moving blade having a set of long teeth configured for cutting hair across a width of said moving blade, and a set of short teeth configured for cutting hair across said moving blade width when a clipper feed rate exceeds a given speed. | 05-21-2009 |
| 20090144988 | BLADE DRIVING ASSEMBLY FOR AN ADJUSTABLE HAIR CLIPPER - A blade driving assembly for an adjustable hair clipper of the present invention comprises a movable blade holder, a spring means, a spring holder and a push lever. The spring means is disposed with a coiled portion secured on the spring holder, a first portion which exerts pressure upon the movable blade holder to bias the movable blade towards the stationary blade and a second portion which biases the spring holder towards a retracted position. The spring holder is disposed with a connecting means at a front end thereof and a securing means at a rear end thereof for securing the coiled portion of the spring means, and the connecting means interlocks with the movable blade holder in such a way to allow the movable blade holder to move in a lateral reciprocating manner. The push lever is driven to move forward or backward by an external force, and a front end of the push lever abuts against the rear end of the spring holder in such a way to push the spring holder forward when the push lever is driven forward, and when the push lever is driven backward, the spring holder is biased by the spring means to retract until the rear end thereof abuts against the push lever. | 06-11-2009 |
| 20110119929 | Blade set for hair clippers - A blade set for hair clippers which has a lower fixed blade, an upper fixed blade, a movable blade assembly and a blade holder. The movable blade assembly is flat and extends in a plane parallel to a lengthwise plane of the upper fixed blade and a lengthwise plane of the lower fixed blade and disposed in between the lower fixed blade and the upper fixed blade in such a way that a user's skin is protected from getting injured by the movable blade assembly. A third toothed front edge is provided at a front end of the movable blade assembly, a lower portion of which cooperates with an upper portion of the first toothed front edge to define a first cutting surface, and an upper portion of which cooperates with a lower portion of the second toothed front edge to define a second cutting surface. | 05-26-2011 |
| 20120174414 | CUTTING BLADE - A cutting blade includes a first and a second elongated frame part, and projections protruding from the first and the second elongated frame part in the cross direction. The first and the second frame part are attached to each other by blades, the blades being individually attached to the first frame part at first pivot points and to the second frame part at second pivot points so that the opposite ends of the blades protrude from the first and second pivot points, respectively, in the cross direction of the frame parts. The first and the second elongated frame part are movable relative to each other to rotate the blades around the first and second pivot points and to generate a cutting movement between each end of the blade and projection approaching each other. | 07-12-2012 |
| 20130031785 | Blade Assembly of a Hedge Trimmer - A blade beam of a motor driven hedge trimmer has two shearing knives. A shearing knife is movable in an oscillating manner through a stroke between two reversal points in the opposite direction with respect to the other shearing knife. Both shearing knives have spaced-apart cutting teeth that act against each other, and are at least partially provided with shearing blades for the chipless, shearing severing of material to be cut. A first cutting tooth of the one shearing knife lies at least partially in overlap with a first or second cutting tooth of the other shearing knife at the two reversal points. The blade beam has a trim cut region, in which the first cutting tooth of the one shearing knife completely glides, between its two reversal points, over a third cutting tooth lying between the first and the second cutting tooth of the other shearing knife. | 02-07-2013 |
| 20130232796 | TRIMMER AND DOUBLE ACTING BLADE ASSEMBLIES FOR TRIMMERS - In an embodiment, a pair of blades, one or both of which is adapted to be reciprocated along a longitudinal axis, comprises a first blade and a second blade, each blade having a cutting edge extending along a portion of the blade length. The cutting edge includes a series of teeth. A width of each blade is stepwise reduced along the cutting edge to the distal end so that one or more teeth from the series of teeth has a cutting surface that is receded relative to a tooth from the series of teeth that is closer to the proximal end. The teeth of the series of teeth are uniformly oriented relative to the longitudinal axis. | 09-12-2013 |
| 20130326885 | HAND-HELD WORK TOOL - A hand-held work tool has a drive motor and at least two cutting blades, at least one of which is driven back and forth by the drive motor. A first cover strip, which has at least keyhole-shaped openings, is arranged on a longitudinal side of one of the cutting blades. There are at least two fastening elements provided which project through the cutting blades and the first cover strip. Each opening has a slip-on portion and a fixing portion. The fixing portions, at least in part, engage behind the fastening portion of the associated fastening element with the first cover strip in the fixed state. The sides of the fixing portions of adjacent openings facing the slip-on portion are at a first spacing from one another. The sides of the fixing portions of adjacent fastening elements facing the fixing portions are at a second greater spacing from one another. | 12-12-2013 |
| 20140059866 | ELECTRIC HAIR CLIPPER - An electric hair clipper comprises a main body block and a cutting block. The main body block has a motor built-in. The cutting block is provided with a blade section. The main body block is formed so as to have a configuration that a curved portion is located between an apical end portion and a rear end portion. The apical end portion is set so that an axial direction thereof is inclined with respect to an axial direction of the rear end portion. Further, the cutting block is set so that a cutting edge direction thereof is inclined with respect to the axial direction of the rear end portion. | 03-06-2014 |
| 20140115901 | HAIR CLIPPER APPARATUS WITH BLADE ASSEMBLY - A hair clipper apparatus includes a housing and a blade assembly mountable to the housing. The blade assembly includes a first blade member having a plurality of first teeth with each said first tooth defining a first longitudinal axis of symmetry and a first primary cutting edge and a second blade member having a plurality of second teeth with each second tooth defining a second longitudinal axis of symmetry and a second primary cutting edge. Each second tooth may have a recessed segment adjacent the second primary cutting edge dimensioned to collect hair disposed between the first and second primary cutting edges. The first blade member and the second blade member are adapted for relative reciprocal movement to cut the hair collected within the recessed segment. | 05-01-2014 |
| 20140283391 | POWER TOOL - A hedge trimmer is provided and may include a first member having a plurality of blades, a second member having a plurality of blades that slide relative to the plurality of blades of the first member, a driver that drives at least one of the plurality of blades of the first member and the plurality of blades of the second member and a plate-shape member that projects upward from an upper surface side of one of the first member and the second member. | 09-25-2014 |
| 20140317938 | Hair Bang Clipper - A hair clipper trimming device includes two arms that are pivotally connected along biasing members on each arm. The arms are biased to an open position by a spring mount. The opposite end of each arm includes cutting a surface. One cutting surface includes a row of teeth of alternating depth while the other cutting surface has a row of teeth of constant depth. | 10-30-2014 |
| 20160082606 | Electric Stubble Trimmer - An outer cutter for an electric trimmer may include a frame having first and second end sections. A plurality of outer cutter ribs may be disposed between the first and second end sections. Each outer cutter rib of the plurality of outer cutter ribs may include a cutting surface and an outer surface. The outer surface may include a glide surface disposed between first and second sides of the outer cutter surface. The plurality of outer cutter ribs may have a stubble trimmer value of at least 3. | 03-24-2016 |
| 20160101530 | STATIONARY CUTTING BLADE FOR A HAIR CLIPPING DEVICE - The present invention relates to a stationary cutting blade ( | 04-14-2016 |
| 20180023680 | WORK APPARATUS WITH HOUSING PARTS CONNECTED VIA A PIVOT JOINT | 01-25-2018 |
| 030209000 | Reciprocating or oscillating power source | 8 |
| 030210000 | With motor | 8 |
| 20080282550 | BLADE ASSEMBLY - A blade assembly for a hair trimmer having a trimmer body and a motor. The blade assembly includes an upper blade having a forward cutting edge, a lower blade having a forward cutting edge and defining a groove, a support member configured for coupling to the trimmer body and having a protrusion, the protrusion configured to be slidingly received in the groove of the lower blade, an actuation member coupled to the lower blade and extending outwardly from the lower blade, and a biasing member retained by the support member and configured to bias the upper blade against the lower blade. The upper blade is configured to oscillate in a transverse direction relative to forward edge of lower blade during operation of motor. The lower blade is configured to move relative to hair trimmer in a longitudinal direction perpendicular to forward edge of upper blade upon movement of actuation member. | 11-20-2008 |
| 20090199412 | Manual Hair Trimmer - A manual hair trimmer ( | 08-13-2009 |
| 20090277017 | HEDGE TRIMMER - A hedge trimmer comprising: a chassis; a set of blades protruding from one end of the chassis; a cord extending from a second end of the chassis; and a rigid cord protector secured to a portion of the cord at end of the cord attached to the second end of the chassis. | 11-12-2009 |
| 20100307009 | DRIVE UNIT FOR A HAIR CUTTING MACHINE - A drive unit for a hair cutting machine comprises a driving motor that includes a substantially U-shaped stator which has a first leg, a second leg, and at least one additional leg located between the first leg and the second leg, at least one field coil which can be disposed on the at least one additional leg, and an armature. Lateral air gap sections are formed between the first and second leg and the armature while central air gap sections are formed between the additional leg and the armature. The central air gap sections and the lateral air gap sections extend at an angle from a longitudinal axis. A first nose, which faces away from the additional leg, is arranged at the end of the first leg, while a notch, which faces the additional leg and corresponds to the first nose, is arranged on the second leg. | 12-09-2010 |
| 20120030950 | VIBRATOR MOTOR - A vibrator motor in a hair clipper has a stationary piece and a moving piece. The stationary piece has a primary leg and at least one secondary leg. The primary leg fits through an opening in a coil. A flange is then press fit onto the leg so that the coil is captured on the primary leg. The flange provides a magnetic pole face that is larger than the opening in the coil, which increases the efficiency of the motor. The flange is press fit in a single operation by pressing a primary prong into a primary socket, and pressing two secondary prongs into secondary sockets. The secondary prongs are guided inwardly as they enter the secondary sockets, which closes the primary socket around the primary prong. A drive arm is secured to an arm of the moving piece. The arm is angled in relation to the drive arm to put even pressure on the moving blade in the hair clipper. | 02-09-2012 |
| 20120227269 | LINEAR ACTUATOR - A linear actuator includes a stationary part, a movable part moveably supported by the stationary part, and at least one elastic member disposed between the movable part and the stationary part. The stationary part includes a stator core with a pair of teeth extending inwardly there from, and a winding wound on each of the teeth. The movable part disposed between the teeth includes two pairs of permanent magnetic poles respectively facing the teeth and an output shaft projecting in a first direction. When the windings are electrified, the stationary part generates a magnetic field which interacts with the permanent magnetic poles to reciprocate the movable part relative to the stationary part in a second direction perpendicular to the first direction. | 09-13-2012 |
| 20120311871 | VIBRATOR MOTOR - A vibrator motor in a hair clipper has a stationary piece and a moving piece. The stationary piece has a primary leg and at least one secondary leg. The primary leg fits through an opening in a coil. A flange is then press fit onto the leg so that the coil is captured on the primary leg. The flange provides a magnetic pole face that is larger than the opening in the coil, which increases the efficiency of the motor. The flange is press fit in a single operation by pressing a primary prong into a primary socket, and pressing two secondary prongs into secondary sockets. The secondary prongs are guided inwardly as they enter the secondary sockets, which closes the primary socket around the primary prong. A drive arm is secured to an arm of the moving piece. The arm is angled in relation to the drive arm to put even pressure on the moving blade in the hair clipper. | 12-13-2012 |
| 20130125404 | TRIMMER AND DOUBLE ACTING BLADE ASSEMBLIES FOR TRIMMERS - In an embodiment, a pair of blades, one or both of which is adapted to be reciprocated along a longitudinal axis, comprises a first blade and a second blade, each blade having a proximal end, a distal end, a length extending between the proximal end and the distal end, and a cutting edge extending along a portion of the length to the distal end. A width of each blade is stepwise reduced along the cutting edge to the distal end so that one or more teeth from the a series of teeth has a cutting surface that is receded relative to a tooth from the series of teeth that is closer to the proximal end. The teeth of the series of teeth are uniformly oriented relative to the longitudinal axis. | 05-23-2013 |
| 030215000 | Rotary power source | 26 |
| 20140020253 | DRIVE MEMBER FOR HAIR TRIMMER - A trimmer and a method for manufacturing a drive for a hair trimmer. The method includes injection molding a transmission with a first shot and within a die, and injection molding a portion of one of the hinge and transmission over the other within the same die and at substantially the same mold temperature. | 01-23-2014 |
| 20160146316 | DRIVE MEMBER FOR HAIR TRIMMER - A drive for a hair trimmer include a transmission having a cam follower coupled to a drive lever by a bridge member, and a hinge having a mounting structure coupled to a first end of a plurality of webs, and a cross-bar coupled to a second end of the plurality of webs. A portion of the cross-bar encloses the bridge member to connect the transmission and the hinge. | 05-26-2016 |
| 030216000 | With motor | 24 |
| 20090100684 | MOTOR DRIVEN TOOL SUCH AS A POLE HEDGE TRIMMER WITH A LOCKING MECHANISM FOR THE TURNABLE CUTTING UNIT - A motor driven tool such as a pole hedge trimmer, a pole saw or the like includes a drive unit ( | 04-23-2009 |
| 20090300923 | Hedge trimmer with top and side blades - A hedge trimmer has two perpendicularly arranged cutting blades. Each of the blades has teeth and the perpendicular arrangement of the blades allows simultaneous cutting in two planes. For example, the front and top of a hedge can be simultaneously trimmed. | 12-10-2009 |
| 20100031514 | DRIVE MEMBER EXTRACTOR TOOL FOR ELECTRIC HAIR CUTTING DEVICES - A replaceable system for use with a hair cutting device, such as a hair clipper or trimmer, having a rotary electric motor and a bladeset is provided. The replaceable system includes a drive member removably positionable between the rotary electric motor and the bladeset of the hair cutting device. The drive member includes a first end operably engaged to a moveable blade of the bladeset and a second end operably engaged to the rotary electric motor. The drive member translating the rotary motion of the rotary electric motor to a reciprocating linear motion. An extraction tool is further provided, where the extraction tool is removable attachable to the drive member and is usable to remove and insert the drive member between the rotary motor and the bladeset. | 02-11-2010 |
| 20100058596 | DRIVING STRUCTURE OF LOW NOISE CLIPPER USING COMPRESSED AIR - The present invention is related to a driving structure of a low noise pneumatic clipper, and an object of the present invention is to use a compressed air in order for driving a cutting comb. The present invention includes a main body, a cutting comb installed on the front side of the main body, and a driving means installed in the inside of the main body to operate the cutting comb. In the present invention, in the inside of the main body, a driving compartment is formed on the center part of the main body to separate the cutting comb from the driving means and a ventilation chamber is formed to surround the driving compartment and to form an inner wall of the main body. the driving compartment and the ventilation chamber are connected by a passing through hole which is position on the upper side of the passing through hole and is connected to an exhaust pipe. | 03-11-2010 |
| 20100154226 | Hedge Trimmer - A hedge trimmer having a rear handle, a tubular handle and a blade arrangement with at least one cutter bar disposed in a cutter bar plane. An internal combustion engine drives the cutter bars in a reciprocating manner, and has a combustion chamber and a crankshaft mounted in a crankcase so as to be rotatable about an axis of rotation. The combustion chamber faces the rear handle, and the crankcase faces the blade arrangement. The blade arrangement has a longitudinal central axis, and the hedge trimmer has a longitudinal plane that is disposed parallel to the axis of rotation of the crankshaft and transverse to the cutter bar plane. The longitudinal central axis of the blade arrangement lies in the longitudinal plane of the hedge trimmer. | 06-24-2010 |
| 20100154227 | Hedge Trimmer - A hedge trimmer having a drive motor, a gear mechanism, and a blade arrangement with at least one cutter bar, which is driven in a reciprocating manner by the drive motor via the gear mechanism in a longitudinal direction. The blade arrangement includes a guide mechanism that extends over at least a part of the length of the blade arrangement. The guide mechanism is embodied as a molded part that includes a generally flat fastening portion and a profiled guide portion. The cutter bar is longitudinally movably held on the guide portion. | 06-24-2010 |
| 20100218385 | Battery-Operated Hand-Held Electric Device - A hand-guided electric device has an electric motor for driving a tool. The electric motor has a motor housing with inlet and outlet for cooling air. A blower wheel is driven by the electric motor and cooling air is conveyed into the motor housing with the blower wheel through the inlet and blown out from the motor housing through the outlet. The device housing has a cooling air inlet chamber and a cooling air outlet chamber. The cooling air enters the inlet chamber through a cooling air inlet port in an exterior housing wall of the device housing and exits from the outlet chamber through a cooling air outlet port in the exterior housing wall. The cooling air inlet and outlet chambers are separated from one another substantially air-tightly by an inner housing wall so that motor housing is the only flow connection between inlet and outlet chambers. | 09-02-2010 |
| 20110179651 | Eccentric gear arrangement - The invention relates to an eccentric gear arrangement of a motor-driven, hand-guided hedge trimmer ( | 07-28-2011 |
| 20120036722 | Hand-Held Power Tool - In a hand-held power tool with a drive motor and a clutch connected to the drive motor and having an output part, the drive pinion is fixedly connected to the output part of the clutch so as to be driven by the drive motor for driving a tool. The drive pinion has a first individual part and a second individual part that are fixedly connected to each other. The first individual part has a toothing and the second individual part is connected to the output part of the clutch. | 02-16-2012 |
| 20120055032 | HEDGE TRIMMER - A hedge trimmer having improved operational balance includes a housing with a front handle and a main handle, a cutting assembly, a motor assembly, a transmission assembly and a switch device arranged on the housing for controlling the start of the motor assembly. The cutting assembly is connected to the housing, the motor assembly and the transmission assembly are arranged in the housing, and the transmission assembly for transmitting the rotation of the motor assembly to the cutting assembly is located between the motor assembly and the cutting assembly. The main handle is located between the motor assembly and the transmission assembly and a main part of the main handle is located above a motor output shaft in the motor assembly. | 03-08-2012 |
| 20120151778 | CUTTING ASSEMBLY FOR HAND-HELD POWER TOOL - The invention relates to a cutting assembly ( | 06-21-2012 |
| 20120167394 | Motor-Driven Handheld Cutting Device, Method for Producing Same, and Double Blade Arrangement - The invention relates to a motor-driven cutting device with a double blade arrangement driven by means of a double eccentric arrangement having opposing oscillating blade movement, comprising an advantageous construction with a separate double eccentric group for the drive device that can form a uniformly operable front-part group, particularly in conjunction with the double blade arrangement at a particularly favourable cost, and that is advantageous for installing the front-part group in the production process and/or when replacing the preferably uniformly operable front-part group. | 07-05-2012 |
| 20120192436 | Electric Hair Trimmer Having Arched Detailer - An electric hair trimmer includes a handle having a drive motor and a cutter head connected to the handle. The cutter head includes a housing having a pair of cutting blades extending from an end of the housing and disposed adjacent to one another. At least one of the blades is adapted for motion relative to the other blade to cut hair, and each of the blades has a curved shape at a terminal end. | 08-02-2012 |
| 20130025135 | HEDGE TRIMMER - A hedge trimmer ( | 01-31-2013 |
| 20130318799 | ELECTRICALLY POWERED GARDEN TOOL - An electrically powered garden tool includes an electric motor mounted upright within an outer shell housing, a pair of relatively reciprocating shear blades assembled to be driven by operation of the motor through a crank mechanism provided within a lower portion of the outer shell housing, and a cooling fan assembled to be driven by operation of the motor for introducing outside air into an upper portion of the outer shell housing to exhaust the introduced air from a lower portion of the outer shell housing. In the garden tool, a downward exhaust opening is formed within a lower end peripheral wall of the outer shell housing enclosing the crank mechanism such that the air spouted by rotation of the cooling fan blows out downward from the downward exhaust opening to restrain the occurrence of blowing noise of the air. | 12-05-2013 |
| 20140047719 | HEDGE TRIMMER - In a hedge trimmer, a main body is configured of: a main body front portion on a front side (a side on which the cutting blade protrudes); a main body rear portion on a rear side; and a supporting portion for connecting them on a lower side. One end of a main handle and the other end of the same are connected to an upper portion of the main body front portion on the rear end side and an upper portion of the main body rear portion on the front end side. The main handle has a linear shape in parallel to a longitudinal direction of a cutting blade. In this configuration, the main handle is set in substantially parallel to the supporting portion, and a grip space is formed between the main handle and the supporting portion. | 02-20-2014 |
| 20140215833 | HEDGE TRIMMER - A hedge trimmer having a drive motor, a gear mechanism, and a blade arrangement with at least one cutter bar, which is driven in a reciprocating manner by the drive motor via the gear mechanism in a longitudinal direction. The blade arrangement includes a guide mechanism that extends over at least a part of the length of the blade arrangement. The guide mechanism is embodied as a molded part that includes a generally flat fastening portion and a profiled guide portion. The cutter bar is longitudinally movably held on the guide portion. | 08-07-2014 |
| 20140310962 | ELECTRIC HAIR CUTTING APPARATUS - An electric hair cutting apparatus having a motor for rotating a shaft, which, rotates an eccentric about the axis of the shaft, but not about the central axis of the eccentric, A cylindrical bearing is positioned around the eccentric. A drive tip is provided with a follower end which is shaped and positioned to engage with the bearing surrounding the eccentric. As the eccentric rotates, the bearing alternately pushes on left and right arms of the follower end of the drive tip, causing the drive tip to oscillate back and forth about a pivot point, The angle of the bearing with respect to the eccentric allows for generally continuous contact between the arms of the follower end of the drive tip with the bearing, even throughout the pivoting of the drive tip. | 10-23-2014 |
| 20140338199 | DRIVE ASSEMBLY FOR HAIR TRIMMERS - A hair trimmer has a base housing and a blade set having a stationary blade and a reciprocating blade. The base housing has a blade set support at one end. The support has a pair of spaced blade set support projections. A cam follower has spaced spring retainers near a bottom of the cam follower, and spaced spring end catches near an upper edge of the cam follower. A spring has elongated legs and a tension arm. The elongated legs extend under the spring retainers and into the spring end catches in the cam follower. A spring tensioner is secured in the base housing by a latch that engages a tensioner catch. The spring tensioner secures the tension arm so that the spring is under tension. | 11-20-2014 |
| 20140352159 | LINEAR DRIVE SYSTEM FOR HAIR CLIPPERS - A hair clipper has a base housing, a secondary housing cover, and a rotary motor or vibrator motor secured between the base housing and the housing cover. The rotary motor has a shaft and a cam secured to an end of the shaft, and the vibrator motor has a drive arm with a drive finger. A cam follower is operably connected to the cam or drive finger on a top side. The top side of the cam follower also has an elongated guide rail that is operably secured to a guide channel in a blade guide, which in turn is secured to the base housing. A reciprocating blade is operably secured to the bottom side of the cam follower, and a stationary blade is secured to the base housing adjacent the reciprocating blade. | 12-04-2014 |
| 20150296719 | POWER TOOL WITH MAGNETIC BLADE COUPLING - Various exemplary embodiments relate to a power tool including: a housing; a selectively actuable motor including a rotary output; a rotary drive element arranged in operative contact with the rotary output of the motor and including a drive pin; a removable blade assembly having a stationary blade and a moving blade in operative contact with the drive pin, wherein movement of the drive pin is translated into movement of the moving blade; a blade holder operable to selectively lock the stationary blade in an aligned position with respect to the housing; and a magnet positioned to contact the stationary blade when the stationary blade occupies the aligned position and hold the stationary blade in the aligned position. Various embodiments relate to a related transmission including similar features including a magnet positioned to contact a stationary blade when the stationary blade occupies the aligned position. | 10-22-2015 |
| 20160007542 | VEGETATION CUTTING DEVICE | 01-14-2016 |
| 20160008994 | ERGONOMIC HAIR CUTTING TOOLS | 01-14-2016 |
| 20160113209 | SHEARING TOOL - A method for operating a shearing tool that includes: operating a first switch to control a drive unit to drive a blade of a blade set; and operating a second switch to cause the drive unit to operate in an anti-binding mode in which a direction of an input to the drive unit is alternated at least twice. A shearing tool is also provided. | 04-28-2016 |
