Abstract: A manufacturing method of an inkjet head including, forming an insulating layer which is compact compared to a piezoelectric member with respect to a region other than a driving unit which ejects ink, in the piezoelectric member, and forming an electrode for applying a driving voltage to the driving unit, by performing electroless plating with respect to the driving unit and the insulating layer.

Abstract: A machine for making gears. The machine comprising at least one piece-holder table, which is mounted to rotate about a given first longitudinal axis thereof, and supports a piece being machined; and at least an operating head, which is provided with at least one tool for machining the piece. The machine is characterized in that the piece-holder table and the operating head are provided with relative motion with respect to each other in a first direction. Moreover, the operating head and the piece-holder table can be selectively stopped along their respective path according to the machining process to be carried out on the piece.

Abstract: A method for repairing a compressor blade of a turbine engine, the blade including a cat's tongue at the radial end thereof, the radial extension of which is less than a predefined nominal radial extension. The method includes elongating the cat's tongue via a cold-compacting operation applied to the walls of said tongue, such that the radial elongation thereof becomes greater than the nominal extension. The compacting operation is a roller-burnishing operation carried out by moving the end of the blade between two rollers having rectilinear generatrices and spaced apart by a distance smaller than the thickness of the cat's tongue, along the chord connecting the leading edge with the trailing edge thereof.

Abstract: A blind attachment that includes a body (36) with—at a first end—a visible surface (38), through which a bore (40) passes that accommodates a rod (42) of which a first end (44) projects relative to the visible surface (38) and of which the other end includes a head (46) that can deform a deformation zone (48) when the rod (42) moves translationally, with the visible surface including holding elements for coupling the body (36) to a tool that is used for driving the rod (42) in rotation, whereby the holding elements include at least one lug (52) that is connected at the visible surface (38) and that projects relative to the latter, characterized in that the at least one lug (52) is connected to the body (36) by a junction zone (54) that can break when the lug undergoes a force that exceeds a given threshold.

Abstract: A tension relief system for threaded fasteners comprises a main body housing a piston for generating a clamping load, seals to maintain the hydraulic pressure within the pressure chamber, an external pressure port extending through the body to the pressure chamber and adapted to be connected to an external pressure source, a connector on which the main body may be mounted, and a spring which may be compressed through the relative motion of the piston and the connector.

Abstract: An accessory mounting apparatus is provided for coupling to a vehicle roll bar. The accessory mounting apparatus illustratively includes a driver side clamping device configured to be secured to a driver side upright of the roll bar, and a passenger side clamping device configured to be secured to the passenger side upright of the roll bar. Protective sleeves cooperate with the clamping devices to protect the roll bar from damaging contact therewith. A laterally extending cross member extends between the driver side clamping device and the passenger side clamping device.

Abstract: A container system for containing a plurality of ink pads including a cover and a plurality of bases. A cover mounting portion is capable of engaging any one of first base mounting portions to detachably attach the cover to the plurality of bases. The first base mounting portions are capable of engaging second base mounting portions to detachably attach the bases to each other. The container system operates in a stack mode and in a single mode. In the stack mode, the cover is detachably attached to one of the plurality of bases, and the one of the plurality of bases to which the cover is detachably attached is detachably attached to another of the plurality of bases. In the single mode, the cover is detachably attached to one of the plurality of bases and the plurality of bases are detached from each other.

Abstract: A mobile jack for raising and lowering a floating storage tank roof. The mobile jack includes a fluid-actuated cylinder and ram housed in a jack structure having multiple telescoping sections. The jack is designed to slide onto the forks of equipment to transport the jack to a desired location beneath the roof in preparation for lifting the roof and can be clamped to retain the jack in place during transport. The cylinder and ram are utilized to extend and retract a portion of the jack structure to raise and lower the roof of the floating roof storage tank.

Abstract: The invention relates to a method for changing rolls, in particular, working rolls and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets and working roller sets. One individual locomotive mechanism is used for changing the working rolls and/or for changing the back up rolls and/or for inserting or withdrawing a roll changing seat by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall in a roll workshop and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Abstract: The invention relates to a method for changing rolls, in particular, working rolls and/or intermediate rolls in a roll stand, such as a roughing down stand or finishing stand for rolling thick sheet iron. Said rolls comprise back up roller sets and working roller sets. One individual locomotive mechanism is used for changing the working rolls and/or for changing the back up rolls and/or for inserting or withdrawing a roll changing seat by supporting the rolls on each other and subsequently withdrawing in the axial direction of the rolls on the operational side of the roll stand, from a roll hall in a roll workshop and back and for installing novel roll sets. The invention also relates to a device for carrying out said method.

Abstract: A continuous strip of T-Nuts formed on a common strip of metal. Each T-Nut of the strip of T-Nuts is integrally connected to the next adjacent T-Nut by carry tabs. The carry tabs can be frangible themselves or contain a frangible portion. Each T-Nut includes a cylindrical bore therein and a threaded interior. A mechanism feeds and severs the endmost T-Nut in endwise fashion. The mechanism to feed and sever the endmost T-Nut includes a cutting blade positioned vertically below the frangible portion of the carry tab. A shearing ram having a guide positioned axially in line with the cylindrical bore in the endmost T-Nut is adapted to move vertically from an upper to a lower position to engage the cutting blade with the frangible portion and sever the endmost T-Nut.

Abstract: Devices and methods for removing a partially severed fastener by mating a retractable shaped neck (220) on a latching guide (200) to a corresponding recess (26) in a partially severed fastener (20), said fastener being fixed in a workpiece (40) and extending a punch head (114) through said shaped neck (via retracting of said shaped neck) and transferring a force from said punch to said fastener thereby severing the shank (24) portion of the fastener from other portions of the fastener are disclosed.

Abstract: Apparatus for hanging a High Voltage Air Conditioning unit having an arm attached at its top end to a support member, a bar slidably coupled to the arm having a first horizontally extending arm at the bottom of the bar to form a J bar, and a second horizontally extending arm attached to the bottom of the J bar above the first horizontally extending arm. Clearance openings in the arm and J bar for fasteners for attaching the arm to the J bar to raise or lower the horizontally extending arms for units of different heights. Coupling sleeves coupled to the horizontally extending arms and extension member have lengths that provide for HVAC units of different widths and are adapted to be removably attached to coupling sleeves on an opposing J bar. The second horizontally extending arm and extension member provides support an HVAC unit; and the first provides to support a drain pan.

Abstract: A stainless steel wrap assembly and method of decorating a monument using the same. When fabricated the stainless steel wrap assembly to have a predetermined decorative design and predetermined size that compliments the size and shaped of a preexisting monument. The wrap is then placed over the monument and attached thereto such that the wrap incorporates features of the preexisting to provide one single view for an observer.

Abstract: A system and method for releasably coupling an extendable element to an actuator. Such a system may include an actuator housing with a specially adapted integral connecting end having a cavity therein. An extendable element may extend into the cavity through an opening in the connecting end of the housing and be coupled to a motive element of the actuator by a rotatable collar that resides in the cavity. A cover plate forms a part of the actuator housing connecting end. The cover plate compliments the integral portion of the connecting end and, in conjunction therewith, encloses the collar and the coupled portion of the extendable element. A substantially hollow end cap is passed over the extendable element and releasably attached to the actuator housing to enclose the distal connecting end thereof. In some embodiments, the coupled extendable element may reciprocate within an outer tube that is also releasably attached to the actuator housing.

Abstract: The present invention includes a method of assembling an anchor for use in tissue comprising an anchor body, a continuous closed suture loop and an insert, the method comprising positioning a portion of the continuous closed suture loop through an opening in the anchor body; positioning the insert adjacent the portion of the continuous closed suture loop which was passed through the opening; and securing the insert to the anchor body such that the continuous closed suture loop is secured to the anchor body by the insert.

Abstract: A security lock assembly includes a channel blocking frame, deadbolt and a pin-lock assembly. The channel blocking frame defines a central opening along a first axis and a pair of opposing apertures along a second axis orthogonal to the first. The deadbolt also defines an aperture or bore extending therethrough for alignment with the frame's opposing apertures when positioned at least partially within the central opening of the channel blocking frame. The pin lock assembly has an elongated shaft dimensioned to extend through opposing apertures of the lock frame and deadbolt thereby entrapping the deadbolt within the channel blocking frame. Enlarged ends of the pin lock assembly prevent unauthorized removal of the pin-lock, the deadbolt, and thus the installed lock assembly from a detachable assembly (e.g., plow). The security lock assembly when secured within an attachment channel of a plow prevents unauthorized attachment without first removing the security lock assembly.

Abstract: A bottom trim member secures a curved sheet element such as a windshield or the like on a surface. The bottom trim member includes a bottom trim extrusion having a connecting leg affixable to the curved sheet element and a gasket receiving leg. A gasket is disposed in engagement with the gasket receiving leg, where the gasket is shaped such that the bottom trim extrusion is positionable in multiple orientations relative to the surface and such that the gasket maintains a sealing engagement in any of the bottom trim extrusion multiple orientations. A securing member is affixable to the surface and cooperable with the bottom trim extrusion to secure the bottom trim extrusion to the surface in any one of the bottom trim extrusion multiple orientations.

Abstract: A trench drain system and method of installation thereof on a level floor surface. An elongate channel member is placed on the floor surface. A preformed elongate sloping member having a thick end tapering to a thin end in inserted into the channel with its thin end closest to the channel drain opening, thereby forming an inclined sloping surface. A grate extends over the channel inlet. The area adjacent the channel is filled to the height of the channel, whereby water thereon flows through the grate into the channel, along the inclined surface and out through the drain opening. The channel can be placed adjacent a vertical wall whereby wall tile may be installed over a channel top edge. The floor area adjacent the channel is filled with preformed sloping sheet members or with plastically formable material positioned at an incline using a floor height setting post.

Abstract: A trench drain system and method of installation thereof on a level floor surface. An elongate channel member is placed on the floor surface. A preformed elongate sloping member having a thick end tapering to a thin end in inserted into the channel with its thin end closest to the channel drain opening, thereby forming an inclined sloping surface. A grate extends over the channel inlet. The area adjacent the channel is filled to the height of the channel, whereby water thereon flows through the grate into the channel, along the inclined surface and out through the drain opening. The channel can be placed adjacent a vertical wall whereby wall tile may be installed over a channel top edge. The floor area adjacent the channel is filled with preformed sloping sheet members or with plastically formable material positioned at an incline using a floor height setting post.

Abstract: A trench drain system and method of installation thereof on a level floor surface. An elongate channel member is placed on the floor surface. A preformed elongate sloping member having a thick end tapering to a thin end in inserted into the channel with its thin end closest to the channel drain opening, thereby forming an inclined sloping surface. A grate extends over the channel inlet. The area adjacent the channel is filled to the height of the channel, whereby water thereon flows through the grate into the channel, along the inclined surface and out through the drain opening. The channel can be placed adjacent a vertical wall whereby wall tile may be installed over a channel top edge. The floor area adjacent the channel is filled with preformed sloping sheet members or with plastically formable material positioned at an incline using a floor height setting post.

Abstract: A display device for spreading a turkey's tail feathers in a fan-like display is provided. The device consists of an elongated shank having two opposing ends, and two quill clips located one at each of the two opposing ends of said shank haying grooves that snap onto the quills near the base of two or more of the turkey's outer tail feathers located to either opposite side of the hub. When installed, the device is invisible to view. An adjustable joint may be provided to enable adjusting a version of the shank having two arms to a certain angle to optimize the turkey fan display. A mounting mechanism may further be provided for mounting an object to the turkey fan display such as the heard, or a pole for use of the fan as a decoy in the field.

Abstract: A termination tool assembly for terminating a fiber optic cable to a fiber optic connector includes a cam and a base for receiving the cam. The cam serves to rotationally activate a mechanical splice on a mechanical splice connector and thereby terminate the fiber optic cable. The fiber optic connector and fiber optic cable are axially received by the termination tool and are laterally removed from the termination tool after termination as a terminated fiber optic cable assembly.

Abstract: An improved method of shrink fit assembly of two components increases resistance to torsional and/or axial loads without the need for a separate key element. Use of a roughened surface, in combination with a softer deformable material, creates a keyed type interaction at the contact areas of the shrink fitted components. One of the shrink fitted components may include the softer material, though intermediate layers and sleeves can be used.

Abstract: A method for manufacturing a prosthetic hip acetabulum includes the steps of: a) providing an insertion cup (1) having an inner concave receiving surface (3) having an opening surface (5) contained in an opening plane (P), and having an outer annular receiving structure (6); b) providing an installation and positioning insert (7) having a peripheral annular attachment structure (10) shaped to engage with the receiving surface (9) of the outer annular receiving structure (6) fitting around the annular outer receiving structure (6); c) heating the installation and positioning insert (7) in order to increase the size of the insert (7), d) fitting the peripheral annular attachment structure (10) around the receiving surface (9) of the outer annular receiving structure (6); e) cooling the installation and positioning insert (7) to room temperature in order to reduce the size of the insert (7) and achieve radial tightening of the peripheral annular attachment structure (10) on the outer annular receiving structure

Abstract: A two-stage punch accomplishes the two-step process of sheet deformation and nut flaring to attach the nut to the sheet in a single stroke of an assembly press. The punch comprises an outer cylindrical sleeve which captivates a resiliently biased center punch. When the punch is moved downward into contact with the sheet, an embossing ring on the sleeve deforms the sheet material around an aperture in the sheet. When the punch is moved farther downward, a pointed end of the center punch extends beyond the embossing ring and into forcible contact with the nut. The nut is thereby flared capturing the sheet between flared edges of the nut and a nut flange.

Abstract: A portable utility shelf having a first shell pivotably connected to a second shell. A channel having a slot is located in the front surface of at least one of the shells. A fastener is mounted in the slot in the channel. The fastener allows for mounting one shell on an attachment surface and pivoting the utility shelf to an open position to create a work surface on the other shell.

Abstract: An exhaust system component for a motor vehicle has a first exhaust passage, an attachment flange, which encloses the first exhaust passage, for the connection of the component to an adjacent component, the attachment flange defining an attachment plane for the contact with the adjacent component and having fastening holes for the connection to the adjacent component, and a second exhaust passage, which is spaced apart from the first exhaust passage in a longitudinal direction of the component. A normal line on the attachment plane extends at a non-negligible angle to the longitudinal direction, and the fastening holes are elongated in a direction parallel to the attachment plane.

Abstract: An anchor bracket releasably securable between two spaced-apart, generally planar boards, having a pair of first and second legs disposed parallel and offset relative to one another, a medial shank disposed between and generally perpendicular to and joining the pair of legs and means for releasably anchoring an object attached to the second leg. A method of mounting the anchor bracket includes the steps of moving the anchor bracket between an insertion/withdrawal position and a mounted anchoring position between a pair of spaced-apart boards.

Abstract: The invention relates to a punch rivet for connecting two workpieces. The rivet includes a head and a hollow shank having a shank internal diameter (D3), a shank external diameter (D1) and a shank end face. Located at the shank end face is an annular cutting edge with a diameter (D4) that is smaller than the shank external diameter (D1). The shank internal diameter (D3) merges with the annular cutting edge via a cutting edge radius (R2); and the ratio of the cutting edge radius to the shank external diameter R2/D1 is greater than 0.3.

Abstract: A preferred embodiment of the invention includes a method for replacing the cover of an electronic key fob used for remote keyless access to an automobile that was damaged due to normal wear-and-tear on the cover or from stress placed on the cover of the key fob at the opening where the key chain is attached. The method of the present invention provides a replacement electronic key fob cover of similar or different design and in the original or different color.

Abstract: This invention relates to a process to make a lithium-manganese-titanium-containing compound, which can be used as an electrode material in a lithium ion battery. The process dissolves the constituent materials in a polar, organic solvent to form a compound described by the formula LiMn(2-x)Ti(x)O4.

Abstract: Provided is a battery fabrication method capable of collecting foils by reforming a collector with ease and at a high quality. The battery fabrication method is to fabricate a battery (10) including an electrode body (30) formed such that a positive electrode foil (31), a part of the surface of which is coated with a positive electrode mixture, and a negative electrode foil (32), a part of which is coated with a negative electrode mixture, are stacked with a separator (33) interposed therebetween and the stacked foils are rolled. In the processes of the battery fabrication method, when the electrode body (30) is formed by the rolling, the mixture non-coated parts (35, 36) of the positive electrode foil (31) and negative electrode foil (32) are reformed by use of a reforming roll (50, 50), thereby collecting into bundles (35a,36a) a plurality of foils having different rounds in the radial direction of the electrode body (30) at the mixture non-coated parts (35, 36).

Abstract: Primary lithium cells are provided, the cells having an anode comprising lithium and a cathode comprising iron disulfide. Features of the cells are optimized in order to enhance the cell performance within the constraints imposed by the maximum permitted level of lithium and standard cell dimensions.

Abstract: A multilayer ceramic component includes a stack containing ceramic layers and electrode layers interspersed among the ceramic layers. The electrode layers contain copper and define first and second internal electrodes. First and second external contacts are on different sides of the stack. The first and second external contacts contain copper and are substantially perpendicular to the ceramic layers and electrode layers. The first internal electrode is connected to the first external contact and the second internal electrode is connected to the second external contact. The first and second internal electrodes overlap each other at a plane intersecting the stack. In areas adjacent to boundaries between the first and second external contacts and the ceramic layers, the first and second external contacts are not oxidized and material making-up the ceramic layers is not diminished. A bonding strength of the external contacts to the stack exceeds 50N.

Abstract: Provided is an electronic device of high reliability having an exposed functional portion. An electronic device 10 comprises an electronic element 11 having an exposed functional portion 11a on a first surface, a frame member 12 having a first penetration hole 12a, and a board 13 having a second penetration hole 13a. The frame member 12 is provided on the first surface of the electronic element 11 such that the first penetration hole 12a faces at least a part of the functional portion 11a. The electronic element 11 is mounted on the board 13 such that at least a part of the functional portion 11a faces the second penetration hole 13a. The frame member 12 does not contact with the board 13.

Abstract: In integrated circuit packages, core vias are created to provide electrical connections between circuitry on one face of the core substrate material with circuitry on an opposing face of the core substrate material. Provided are methods for forming a via in a packaging substrate and packaging substrates having core vias formed in the core substrate material. Methods for forma a core via in a packaging substrate in which a first hole is created through the core substrate and filled with a low permittivity filler material. A second co-axially aligned hole is then created in the low permittivity filler material wherein the second hole is smaller in diameter than the first hole. The second hole is then filled with conducting material to provide a conducting via through the core substrate material.

Abstract: A manufacturing method for a printed wiring board includes forming an electroless plated film on an interlayer resin insulation layer, forming on the electroless plated film a plating resist with an opening to expose a portion of the electroless plated film, forming an electrolytic plated film on the portion of the electroless plated film exposed through the opening, removing the plating resist using a resist-removing solution containing an amine, reducing a thickness of a portion of the electroless plated film existing between adjacent portions of the electrolytic plated film by using the resist-removing solution, and forming a conductive pattern by removing the portion of the electroless plated film existing between the adjacent portions of the electrolytic plated film by using an etchant.

Abstract: The present invention relates to a method for balancing a wind turbine. The method includes the steps of a) measuring at least one property that is dependent on a motor workload of at least one yaw motor 52 of a soft yaw system 5 during a period of time, b) calculating an unbalance based on the measurement of step a), c) determining a pitch offset angle for at least one turbine blade 41 based on the calculation of step b), and d) changing the pitch of the at least one turbine blade according to the pitch offset angle of step c) for decreasing the unbalance. The present invention also relates to a system for balancing a wind turbine.

Abstract: A manufacturing method of an inkjet head which ejects ink due to deformation of a Pb free piezoelectric member which is caused by applying a driving voltage. In the method, an electrode which is used when applying the driving voltage is formed by forming a first conductive pattern in the Pb free piezoelectric member, forming an insulating layer in a region other than a region where at least the first conductive pattern is formed, in the Pb free piezoelectric member, and forming a second conductive pattern on the first conductive pattern using electroplating.

Abstract: The water heater (2) or steam generator comprises a chamber (4) in two sections (5, 6) formed in particular by stamping. Inside this chamber a heating element (8) is arranged, which has a spiral-shaped main section (10) and two end sections (11, 12) passing through two circular openings of the chamber. The two end sections are welded to the chamber by a laser beam such that the weld obtained is continuous and ensures a good mechanical fixture of the heating element and an adequate tightness for the water heater or steam generator. For this purpose, a flange (18) is arranged at the periphery of each opening. Moreover, the two sections of the chamber have a widened edge (28) to allow them to be welded effectively.

Abstract: A green ball grinding method includes the step of supplying a green ball between a first surface of a first member and a second surface of a second member constituting a grinding apparatus, and the step of grinding the green ball between the first surface and the second surface while the green ball rotates around its own axis and in orbital motion. In the step of grinding the green ball, the step of causing the green ball grinding to proceed while applying load between the green ball and each of the first surface and the second surface, and the step of modifying the rotation axis of the green ball by reducing the load lower than in the step of causing the green ball grinding to proceed are executed alternately.

Abstract: A nuclear power plant construction preparation unit includes: a device main body which enters into a space; a moving part which causes the device main body to enter into the space; an eddy-current inspection sensor which is provided on the device main body, and which detects a target portion of a member surface within the space; a punch marking part which is provided on the device main body, and which performs marking on the member surface; and a control part which controls the moving part and the marking device based on detection results from the target portion detection device, to thereby perform marking at a relative position with respect to the target portion.

Abstract: Techniques involving a kicker assist mechanism and other functionality are described. In one or more implementations, the techniques describe a device that includes a lever coupled to a stop-pin and configured to cause deployment of a blade from a handle of a folding knife. The lever may be configured to pivot about the stop-pin in response to a push or pull force directed at one end of the lever and engage the blade with an opposing end of the lever with a force to cause the deployment of the blade. The blade may be configured to deploy in a pivotal movement from a closed position of the folding knife to a deployed position in response to the force employed by the opposing end of the lever.

Abstract: The present invention is to provide a folding knife having a blade pivotally connected to a handle. A resilient locking arm has a first end fixed inside to the handle and a second end extending slantingly toward the blade when the blade is received in the handle. A positioning plate is movably positioned in the handle, and has a first end extending outside to the handle. Once the blade is received in the handle, the positioning plate engages with the resilient locking arm. However, when the blade is rotated out of the handle completely, the second end of the resilient locking arm presses against the end of the blade in a locked position, and thereby the positioning plate disengages with the resilient locking arm and presses against the resilient locking arm to avoid the blade from being out of the locked position and rotated into the handle.

Abstract: A folding knife includes a handle, a blade pivotably connected to the handle, and a lockbar for locking the blade in an open position relative to the handle. The lockbar and the handle are separate pieces. The handle includes a pocket into which at least a portion of the lockbar is fit.

Abstract: There is provided a four-cycle engine which can appropriately circulate oil in an engine regardless of a tilted condition with a simple structure. A crankcase (4) of a four-cycle engine (1) has a crank room (41) which rotatably supports a crankshaft (10) and an oil room (42) which is provided adjacent to the exterior of the crank room (41). The crankcase (4) also has partition walls (43) and (44) which partition the interior of the crankcase (4) into the crank room (41) and the oil room (42), respectively, and a communication path (45) which communicates the crank room (41) with the oil room (42). The partition walls (43) and (44) each has a cross section formed in a substantially V shape, and the communication path (45) is formed at an apex between the partition walls (43) and (44).

Abstract: A food preparation plate is replaceable and engagement means for retaining the food preparation plate are present between the food preparation plate and a retaining part. The food preparation plate can move in translation in a direction perpendicular to a plane constituted by the retaining part. Two places on the back side of the food preparation plate that is retained in the retaining part can be simultaneously pressed in the direction of the front side by the digits of different hands; and by simultaneously pressing those two places with digits of different hands, the food preparation plate is moved in translation in the direction of the front side thereof, so as to release the engagement means and allow the food preparation plate to be detached.

Abstract: A ring cutter for twine or the like, comprising a ring adapted to fit on the finger of a user and having a pair of side portions joined at the upper end thereof and separated at the lower end thereof by a space therebetween. The ring is formed of a flexible and resilient material. A bracket extends upwardly from the upper portion of the ring and a cutting blade is secured to the bracket and extends forwardly therefrom. The lower ends of the side portions of the ring are separable to enable a finger of a user to be removed from the ring through the space between the side portions by the application of a downward force by the finger on the lower ends of the side portions. The lower ends may be connected by a narrow tab that can be cut or is frangible.

Abstract: A paper cutter comprises a cutter handle, a cutter head connected to the cutter handle, and a cutter blade mounted in the cutter head. The cutter head comprises a lower cutter head member defining an accommodation chamber for accommodating the cutter blade, and an upper cutter head member accommodating the lower cutter head member in an accommodation chamber with an open at one side therein. The lower cutter head member and the upper cutter head member are respectively made of a stainless steel sheet member by stamping.