721results about "Flat surfacing machines" patented technology

A saw is disclosed having a detection system adapted to detect a dangerous condition between a person and a saw blade, and a brake adapted to stop the saw blade in response to detection of the dangerous condition. The saw further includes a brake positioning system that allows the brake to be positioned in at least two different operable positions to accommodate at least two different blade diameters. The saw may include a system to detect brake-to-blade spacing.

A method of producing a hardwood flooring product, including the steps of processing a strip of raw wood into a blank having a predetermined thickness and width, and top and bottom surfaces defining parallel planes relative to each other, and splitting the blank along the width of the blank from one side to the other to form two low profile flooring strips having the same width as the blank and a thickness less than one-half the thickness of the blank. The splitting step includes the steps of providing first and second circular saw blades mounted on spaced-apart vertical axes for rotation in a single plane intermediate and parallel to the planes of the top and bottom surfaces of the blank and positioning the blank on conveying means upstream from the saw blades with the plane of rotation of the saw blades intermediate and parallel to the planes of the top and bottom surfaces of the blank for movement of the blank from an upstream position to a downstream position relative to the saw blades. The blank is moved downstream into the plane of rotation of the saw blades during rotation of the saw blades thereby horizontally splitting the blank to form first and second low-profile flooring strips. Interlocking members, such as molded, mating tongue and groove members, are molded into first and second longitudinally-extending side edges of the flooring strips for securing together the flooring strips when placed side-to-side to form a floor.

A saw with a safety system is disclosed. The safety system includes a detection system adapted to detect contact between a person and a blade while the blade is moving. The safety system further includes a brake system adapted to engage the blade and to stop the blade when the detection system detects contact between the person and the blade.

Floor panels are shown, which are provided with a mechanical locking system including tongue and grooves provided with protrusions and cavities which are displaceable in relation to each other and configured such that the protrusions can obtain a vertically unlocked position where they match the cavities and a vertically locked position where the protrusions overlap each other.

A “Woodprint™” characterization and identification technique employs cameras (16), lighting (14), camera interface hardware (18), a computer (20), and / or image processing software to collect and analyze surface characteristics of pieces of wood (8) to track them through an automated production process in real-time with information that is specific to each wood piece (8), such as what machining is required, its value, and / or its destination. When a wood piece (8) reaches a point in the production process where a decision is required, its unique identity is used to retrieve appropriate information previously determined and assigned to the wood piece (8).

A method of forming a joint between first and second workpieces generally consisting of forming a recess in one of such workpieces, provided with at least one side wall having a serrated cross-sectional configuration with inwardly projecting, distortable segments; providing a portion in the other of such workpieces, insertable into such recess, having a cross-sectional configuration sufficient to engage and distort such segments as such portion is inserted into such recess; and inserting such portion of the other workpiece into such recess, causing the segments to distort and thus provide an interference fit between such workpieces.

A drum assembly for a wood chipper includes a drum rotatable about a horizontal axis and a plurality of pockets disposed circumferentially about the drum. The drum assembly also includes a plurality of blades operatively connected to the drum, one of the blades partially overlapping one of the pockets. Each of the pockets has a depth greater than a width thereof and a capacity to hold a wood volume of a maximum size of wood being chipped.

A stump cutter tooth held by a pocket member, which has first and second edge, and the pocket member being operatively attached to a driven wheel, which has opposite first and second side surfaces. The stump cutter tooth includes an elongate tooth body that has an axial forward end. A first hard region is at the axial forward end of the tooth body and defines at least one distinct cutting edge that has an orientation to engage the stump during operation. A second hard region is at the axial forward end of the tooth body and is distinct from the first hard region. The second hard region provides protection to at least a portion of the pocket member.

The present invention relates to a brush cutting head for a brush cutter. The brush cutter head includes a cylindrical support body that has a first end, an opposed second end and an intermediate portion extending therebetween. The intermediate portion has a curved surface that defines the circular cross-section of the cylindrical support body. A plurality of collars is mounted to the cylindrical support body at spaced intervals along the intermediate portion. Each collar extends radially from the curved surface of the cylindrical support body. Additionally, each collar cooperates with an adjacent collar to define a mounting station between the adjacent collars. The brush cutter head further includes a plurality of cutting tooth assemblies carried on the outer surface of the cylindrical support body. Each cutting tooth assembly has a cutting tooth for placement within the mounting station and a mounting assembly engageable with the adjacent collars to secure the cutting tooth in the mounting station.

A stump grinding apparatus having a split cutting wheel includes several replaceable cutter blocks secured to the periphery of the wheel. One or more replacement teeth are removably anchored in holes in each block and may also be mounted on holes in the side of the split wheel as well. The teeth are typically provided with a hardened cutting face, and are reinforced with an extension projecting back from the face. Each tooth includes a shank which fits into one of the holes. The shank contains a groove which receives a spring clip or a spring pin for securing the tooth in the hole. The wheel periphery contains individual recesses that are shaped to receive the cutter blocks. Each block includes means for insuring alignment of the block in the corresponding recess. The block is wedged tightly into its recess to reduce the likelihood of accidental removal.

The cylindrical shank of a rotatable tool is retained in the cylindrical bore of a tool holder by a retainer that engages an annular groove on a portion of the shank of the tool that extends outward of the rear surface of the tool holder. The tool has an axial bore in the distal end of the shank. The retainer has a pair of spaced ridges that engage the annular groove on the shank and a panel that extends across the distal end of the shank. The retainer is held in place by a pin extending through the panel and into the bore in the distal end of the shank.

A cutting tool holder, a cutting bit, and a retainer maintaining the cutting bit at a prescribed position relative to the tool holder. The cutting bit is received in a slot located in a first lateral surface that extends through the top surface. The retainer is received in an opening included in the first lateral surface that intercepts the slot. The retainer includes a planar tapered surface that contacts an upwardly and laterally facing oblique surface on a lower end of the cutting bit to hold the lower end of the cutting tool in contact with a lower surface of the slot.

A hybrid router is disclosed that is capable of operating as a fixed or a plunge router wherein the preferred embodiment thereof comprises a motor assembly that has a housing containing a motor as well as operating handles attached to the housing and operating controls for operating the motor. The motor assembly can be removably installed in either a fixed base assembly or a plunge base assembly. The preferred embodiment has an adjustment knob that is located on the motor assembly that engages depth adjustment mechanisms of either the fixed and plunge base assemblies when the motor assembly is installed in the respective base assemblies.

A rotary cutting machine comprises a circular rotating element having a transverse axis of rotation and which is mounted to the rotary cutting machine for rotation about the axis of rotation. A plurality of cutting teeth are mounted to the circular rotating element at spaced apart locations about its circumferential periphery. The cutting teeth are reversible and removably fastened to the circular rotating element. Each cutting tooth includes opposed first and second cutting faces spaced apart by lateral surfaces extending therebetween. The first and second cutting faces define at least four of the cutting edges thereon, such that the cutting teeth are selectively mountable on the circular rotating element in any one of at least eight different positions, each of the positions providing a different one of the cutting edges in the operable cutting position.

A brush cutting head having internally housed drive and bearing assemblies which can be easily attached / detached from the brush cutter housing without having to dismantle the drive assembly for improved productivity. The brush cutting head includes a hollow support body, a drive and bearing assembly housed at least partially within the hollow of the support body, a drive block mounted to extend within the hollow of the support body, and a motor provided with a torque transmitting driveshaft.

A cutter head assembly for a wood planing machine includes a shaft, a plurality of cutter-mounting sleeve modules sleeved on the shaft, and a plurality of cutter modules respectively secured to the sleeve modules such that cutting edges of the cutter modules extend beyond outer wall surfaces of the sleeve modules. An angularly variable positioning mechanism includes an axially extending guiding member disposed on the mount segment, and a plurality of axially extending guided members disposed on inner wall surfaces of the sleeve modules to mate with the axially guiding member. By virtue of fitting engagement between the guiding member and a selected one of the guided member of each sleeve module that are sequentially sleeved onto the shaft, the cutting edges together define a cutting contour line that winds around the shaft.

A milling disk for a floor machining appliance has a plurality of mounts for holding interchangeable plate-like milling tips, the milling disk being driven for rotation by the floor machining appliance and being held substantially parallel to the substructure to be machined so that the milling tips may bite into the substructure and remove matter from the surface thereof. The milling tips are constituted by ceramic cutting tips.

The router bit includes an upper and a lower cutter, axially aligned and separated by a fixed longitudinal displacement. No substantial portion of the bit extends beyond the lower end of the lower cutter. In some embodiments, the lower cutter may be configured with bottom face blades to allow the router to be used as a plunging bit. The cutters may use wing blades or spiral blades. The portion of the bit intervening between the upper and lower cutters may also be configured as a cutter. In some embodiments, the router bit is integral. In other embodiments, it comprises separate elements that may be axially secured.

The present invention is directed to a power finishing tool having a variable position handle. In aspects of the present invention, a power finishing tool includes a motor housing for containing a motor configured to drive a working element. A variable position handle such as linear handle is adjustable generally toward / away from a power cord such that the power cord is maintained in a standard orientation (i.e., toward the rear of the tool / the direction toward a user). In a further aspect a joystick type variable handle is configured to pivot about a Z-axis extending through the power finishing tool. Suitable adjustment mechanisms include a track type mechanism wherein the handle travels along a track, a rotating bracket mechanism for permitting linear adjustment of the handle may be included for varying the position of the handle, and a ball and socket mechanism. An electrical switch for controlling operation of the power finishing tool may be mounted on the handle for controlling the motor included in the power finishing tool or alternatively to the housing in a location so as not to interfere with a user's grasp but permit efficient access. A securing mechanism such as a biased securing mechanism is configured to fix the position of the handle with respect to the motor housing is further included to secure the handle such as a pommel in a desired orientation. Suitable securing mechanisms include friction locks, positive stop (incremental locking mechanisms), or the like for securing the handle with respect to the motor housing.

A power tool comprises a base unit and a motor unit. The base unit includes a handle and a first electrical connector. The motor unit includes an electric motor and a second electrical connector. The motor unit is configured to be releasably connected to the base unit. An electrical connection is established between the first electrical connector and the second electrical connector when the motor unit is properly connected to the base unit. A sensor is configured to determine whether the motor unit is properly connected to the base unit.

A cutter head assembly for a wood planing machine includes a rotary shaft, a plurality of blade carriers non-rotatably retained on the shaft, and a plurality of cutter blades respectively secured on outer wall surfaces of the blade carriers by means of a plurality of screw fasteners. The outer wall surface of each blade carrier includes a leading region and a trailing region that form a first included angle of at least 90 degrees therebetween. Each blade has a first major wall surface abutting against the leading region, a second major wall surface disposed opposite to the first major wall surface, a cutting edge interposed between the first and second major wall surfaces and extending beyond the outer wall surface of the respective blade carrier, and an abutting edge disposed opposite to the cutting edge to abut against the trailing region. The cutting edge of each cutter blade intersects the second major wall surface at a second included angle ranging from 35 degrees to 45 degrees.

A depth adjustment mechanism, disposed on a router, is enabled using a worm drive that includes a shaft member engaging with a rack member. The shaft member couples with a sleeve disposed on a base of the router. The rack member is coupled with a motor casing of the router. The depth adjustment mechanism enables a user selectable engagement of the shaft member with the rack member. A rotating member, which is coupled with the shaft member, is engaged by a user to displace the shaft member relative to the rack member. The selective engagement of the shaft member with the rack member and rotation enabled by the rotating member enables continuous metered depth adjustment for the router.

The invention relates to a processing line for round timber. The processing line comprises a conveying device used for feeding, an overturning device used for centering the round timber in a rotating mode, a bottom bark planing device used for planing the bottom of the round timber to form a plane, a round timber slicing saw used for slicing the round timber in the axial direction of the round timber and a sheet sorting device used for sorting middle sheets and edge sheets of the round timber, wherein the conveying device, the overturning device, the bottom bark planing device, the round timber slicing saw and the sheet sorting device are sequentially arranged in the round timber processing advancing direction. The sheet sorting device comprises a first automatic conveying device used for conveying the middle sheets and a second automatic conveying device used for conveying the edge sheets, wherein the first automatic conveying device and the second automatic conveying device are arranged on the two sides of the sheet sorting device, and square timber slicing saws used for slicing the sheets again are arranged at the outlet of the first automatic conveying device and the outlet of the second automatic conveying device respectively. The processing line is simple in structure, low in manufacturing cost, easy to manufacture and complete in function, greatly improves the round timber working efficiency and lowers the production cost.

A tooth for a circular saw or a mower drum that can be used to cut standing trees or brush and undergrowth. The tooth has four cutting edges arranged in a first pair of opposed cutting edges that are generally straight and a second pair of opposed cutting edges that are generally concave. The tooth is mounted in a holder in a first or second cutting position that orients a cutting edge of the first or second pair to physically contact and effect a cutting method to a cuttable material. In a first cutting method, a generally straight cutting edge contacts the material, resulting in a slicing action. In a second cutting method, a generally concave cutting edge contacts the material, resulting in a gouging action. Teeth in the circular saw or brush mower alternate between first and second cutting positions, allowing both cutting methods to be applied to cuttable material.

A digital measurement system is provided for an apparatus including first and second parts that are positionally adjustable relative to one another, the first part having a base surface and the second part being selectively adjustable toward and away from the base surface. The measurement system includes an elongate reference element mounted for longitudinal movement on the first part such that a first end of the reference element is positionable to be substantially even with the base surface of the first part. A digital reader head is attachable to the second part. The reader head is operable is operably engaged with and moveable along the reference element for measuring relative movement of the reader head along the reference element. The readout further includes a digital display for indicating a measurement corresponding to the relative movement of the reader head along the reference element.

The present invention is directed to an apparatus for providing convenient grasping of a router adjacent base / motor housing includes a base for supporting a motor housing for driving a working tool. A generally L-shaped handle including a connecting member and grasping member is connected to the base for permitting a user to comfortably manipulate the power tool adjacent the motor housing. In further aspect, a removable a generally L-shaped handle includes a channel extending through the handle for directing dust and debris away from the working tool.