Abstract: A magnetic connector apparatus may comprise one or more magnet housings, each of which may comprise one or more magnets positioned therein to rotate within the magnet housing(s). The apparatus may be configured using one or more safety features in order to prevent access and/or removal of the magnet(s). In some embodiments, the apparatus may further comprise an inner retainer piece coupled with the one or more magnet housings, a first outer housing piece coupled with the inner retainer piece, and a second outer housing piece coupled with the inner retainer piece. The first outer housing piece may be positioned on an opposite side of the connector apparatus from the second outer housing piece such that the inner retainer piece is positioned in between the first outer housing piece and the second outer housing piece. Novel methods for manufacturing a magnetic connector apparatus are also disclosed.

Abstract: A multi-purpose utility strap featuring an elongated strap component having an identical first end and second end. A first attachment component is disposed on the top surface of the strap component at the first end, a second attachment component is disposed on the top surface of the strap component next to the first attachment component, a third attachment component is disposed on the bottom surface of the strap component at the second end, and a fourth attachment component is disposed on the top surface of the strap component a distance from the second end. The first attachment component is adapted to engage the second attachment component to form a loop, and the third attachment component is adapted to engage the fourth attachment component to form a loop.

Abstract: A paper yard bag 28 securing device consisting of a cylindrical shape adapted to fit over the corners of two or more bags 28. Two cross-sectional cuts 20a and 20b form four symmetrical legs 14a, 14b, 14c, and 14d and a body 12. Each of the four legs 14a, 14b, 14c, and 14d has a convex radius 18a, 18b, 18c, and 18d facilitating the easy insertion of a group of corners of two or more bags 28. This mechanism serves to both maximize the opening of the bags 28 and secure a plurality of bags 28 adjacent to one another greatly reducing the time to fill yard waste.

Abstract: A bag spreader for spreading a bag in a container lying on its side includes a connection portion arranged to interface with the upwardly facing outer surface of the container when the container is oriented on its side and includes a bag supporting portion arranged for insertion into the bag and the container. The bag supporting portion may be disposed adjacent the upper sidewall of the container in a manner that supports the bag in an open condition when the container is oriented on its side. A head portion connects the connection portion and the bag spreading portion with the connection portion and the bag supporting portion being spaced apart on the head portion a distance sufficient to receive an edge of the container.

Abstract: An attachment mount and receiver system for attaching articles to a garment. A receiver has openings for affixing the receiver to a support that is then attached to a compatible garment. The mount has openings for affixing an article thereto. A pair of flexible springs permit connected tines to be compressed inwardly, allowing the mount to be slidingly inserted into the receiver. A barb at the end of each tine engages an end wall of the receiver when the mount is fully seated. Tines are compressed inwardly and the mount is withdrawable. Selective locks can inhibit the tines from being compressed. Resistance to prying the mount away from the receiver is also provided.

Abstract: A shock-absorbing seat belt buckle (1) including is provided a housing, a push-button (2) displaceably mounted in the housing, a linearly guided inertia mass (3), and a transmission lever (4) pivot-mounted to the housing, which transmission lever is coupled to the inertia mass (3) by an arm (4a) and supports the push-button (2) against the opening direction with another arm (4b), wherein a sound-absorbing elastic layer (11) is provided between the transmission lever (4) and the inertia mass (3), at least in the region of contact between them.

Abstract: An adjustable connector is formed by, an comprises an outer housing, and an inner housing, with the inner housing being positioned inside of the outer housing. This inner housing forms a first connector wherein the inner housing is movable inside of the outer housing. There is also a complementary connector configured to connect to the first connector.

Abstract: A needle (15) for a textile machine, in particular a felting needle or fork needle. A working section (17) extends along a longitudinal axis (16) and has a needle point (18). Adjoining the working section (17) are a lower shank section (20) and an upper shank section (25), both said shank sections extending coaxially with respect to each other along the longitudinal axis (16). Adjoining the upper shank section (25), there is provided a needle foot (30) that has a holding means (32) extending in a straight line in a transverse direction (31) transversely to the longitudinal axis (16). The diameter (E) of the upper shank section (25) is both greater than the diameter (D) of the lower shank section (20) and greater than the mean width of the holding means (32).

Abstract: A large machining apparatus for working a substantially planar workpiece such as a metal plate in relation to which a set of work actions, such as machining grooves and holes, is required at one of a number of work zones on or in the workpiece, the apparatus including: a working assembly such as a drop down drill movably mounted on a beam for reciprocal linear movement along a first horizontal axis extending parallel to the longitudinal axis of the workpiece; and an assembly rail movably mounted on the beam at right angles to the beam to carry the working assembly.

Abstract: A low-pressure process apparatus for processing a substrate comprises a base, a stage, a housing and at least one first roller set. The stage is disposed on the base for supporting the substrate. The housing is detachably disposed on the base moving between a first position and a second position, wherein when the housing is in a first position, the housing and the base form a chamber to receive the stage. When the housing is detached, the first roller set contacts and supports the housing to facilitate movement thereof in a first horizontal direction.

Abstract: There is provided a seat cover for accommodating a child safety chair upon a seat. The seat cover comprises a lower protective member which is disposable upon a seating portion of the seat. This lower member can accommodate the child safety chair when positioned in a rearward-facing direction to prevent it from permanently compressing the seating portion. The seat cover further comprises an upper protective member that is disposable against a seat-back portion of the seat. This upper member is selectively attachable with and detachable from the lower member. By doing so, the upper member can further prevent the chair from permanently compressing the seat-back portion when it is repositioned in a forward-facing direction and placed in contact therewith.

Abstract: An apparatus is disclosed for applying tags with attached elastic anchor bands onto the tops of objects such as bottles in a high speed packaging application. The apparatus includes an infeed assembly for feeding a web, a conveyor assembly that receives a web and conveys it along a path in an upstream direction, a rotating selector wheel, a placement assembly, a pair of rotating jaw assemblies, a vacuum cup of the selector wheel, and stretched elastic bands over the tops of respective bottles being conveyed along a path below the placing assembly. The elastic bands then snap onto the tops of their respective bottles to secure the tags to the bottles.

Abstract: A removal tool includes a staking unit configured to deform a circlip located at a bore of an apparatus when the removal tool is pushed into the bore, and a spring fork unit configured to push a ferrule ring located at the bore when the removal tool is pushed into the bore.

Abstract: A swage tool for swaging axially swaged fittings includes a housing having an inner surface and a first yoke. A ram includes a recessed portion having a threaded inner surface portion. A piston includes a second yoke. A piston rod includes a spring holder and a threaded portion screwed into the threaded inner surface portion of the ram. A spring is connected to the spring holder. Carbon fiber bearings are provided on the ram and on an outer surface portion of the piston rod in axial slidable engagement with the inner surface of the housing.

Abstract: An air hose removal device for removing a hose from a push-to-connect (quick connect push-in) fitting comprises a first lever arm and a second lever arm. The device comprises a generally planar rigid upper fork located on a second lever arm anterior end having a “V” shaped notch. The device comprises a generally planar rigid lower fork mount located on a second lever arm anterior end having a slot that runs longitudinally with respect to the plane of operation of the first lever arm and the second lever arm. The device comprises a rigid lower fork attachment with a “V” shaped notch and a threaded stud located on a lower fork attachment bottom surface that further comprises a mated internally threaded knob. The lower fork attachment comprises a monolithic “vee” block located on a lower fork attachment top surface having a groove located in the “vee” block top surface.

Abstract: A system and method for mounting a coil spring to a brake shoe in a guide track of a window frame. A brake shoe and coil spring are provided. A housing is provided to hold the coil spring. A stop mount is also provided for limiting the movement of the housing in the guide track. The housing and the stop mount are temporarily joined into a common assembly. The coil spring is placed in the housing. The stop mount is mounted in the guide track at a fixed position, wherein the housing is positioned above the stop mount. The free end of the coil spring is connected to the brake shoe below the stop mount The stop mount is then detached from the housing. This enables the housing to move freely within the guide track independently of the stop mount.

Abstract: Implantable medical grafts fabricated of metallic or pseudometallic films of biocompatible materials having a plurality of microperforations passing through the film in a pattern that imparts fabric-like qualities to the graft or permits the geometric deformation of the graft. The implantable graft is preferably fabricated by vacuum deposition of metallic and/or pseudometallic materials into either single or multi-layered structures with the plurality of microperforations either being formed during deposition or after deposition by selective removal of sections of the deposited film. The implantable medical grafts are suitable for use as endoluminal or surgical grafts and may be used as vascular grafts, stent-grafts, skin grafts, shunts, bone grafts, surgical patches, non-vascular conduits, valvular leaflets, filters, occlusion membranes, artificial sphincters, tendons and ligaments.

Abstract: A system and method are provided for detachably mounting different types of infant carriers on a support structure. The system includes a mounting platform provided on a frame of the support structure. The mounting platform includes a first and second coupling structure. The first coupling structure is adapted to engage with a first fastener structure of a first infant carrier, whereas the second coupling structure is adapted to engage with a second fastener structure of a second infant carrier. The mounting platform also includes a rotary support base that can be rotated relative to the frame between a first position and a second position. In the first position, the support base enables engagement of the first coupling structure with the first fastener structure. In the second position, the support structure enables engagement of the second coupling structure with the second fastener structure.

Abstract: A die member is provided for a self-piercing riveting process, the die member comprising a die cavity having an axis and a plurality of sides positioned about the axis, wherein each side extends along a plane which includes a chord connecting two points along a circle centered on the axis.

Abstract: A method of assembling a tampon applicator includes providing a barrel with internal ridges that define a guide channel having an effective diameter. The method includes providing a plunger that has a finger flare with a circular shape and a flare diameter that is at least 15% larger than the effective diameter of the guide channel. The method includes assembling the plunger and the barrel by pushing the finger flare into the guide channel and deforming the finger flare into a non-circular shape while moving the finger flare through the guide channel. The method includes moving the finger flare out of the plunger end of the barrel and reestablishing the circular shape of the finger flare.

Abstract: A tool for grinding an inner diameter even when holders having grindstones are axially connected. A gap enclosed by the inner peripheral surface of a divided tool holder, a draw bar and O-rings is formed in a state in which the draw bar is inserted into a tool holder in which a plurality of divided tool holders are connected in series. A filler is filled into the gap to fix a support bush to the divided tool holder. An adjustment screw of each arm held circumferentially away from each other on the divided tool holder is turned to adjust a distance between a pin and the arm, and the radial projecting amount of each of grindstones is adjusted. The projecting amount is adjusted such that the plurality of grindstones rotate along the same rotational trajectory and the center of the rotational trajectory corresponds to the axis of the draw bar.

Abstract: An apparatus for forming a duct includes a bending apparatus and a support apparatus. The bending apparatus includes a table, a cut off beam, and a leaf hinged to a forward edge of the table. The cut off beam is movable toward and away from the table to clamp or release a metal web being fed forward across the table and the leaf. The cut off beam repeatedly clamps the metal web to the table while the leaf pivots toward the cut off beam to form a duct section. The support apparatus includes a cross rod movable along pivoting support arms. As the metal web is bent to form the duct section, the support arms and the cross rod are moved to internally support the duct section.

Abstract: Process for assembling a first part made of metal material and a second part made of composite material, by an attachment element, which includes: —pre-piercing the parts to form a recess with a diameter D1 in the first and the second parts; —installing an insert having a variable diameter in the direction of the thickness of the parts in the recess, the insert including a main hollow body and at least one flange designed to rest at least partially against the outside surface of a part, the insert being designed to accommodate the attachment element; generating residual compression constraints by radial expansion on the inner wall of the insert by an expansion tool having an outside diameter that works with the inside diameter of the insert in at least one zone of the two parts along the circumference of the insert; —boring the recess of the main body wider so that the insert has a final inside diameter that is significantly greater than the outside diameter of the attachment element to allow play between the

Abstract: A process for manufacturing a metal part reinforced with ceramic fibers, in which: a housing for an insert is machined in a metal body having an upper face; an insert formed from a fiber bundle having a metal matrix is placed in the housing; a metal cover is placed on the metal body so as to cover the insert; the cover is welded onto the metal body; the assembly including the metal body with the cover undergoes a hot isostatic compression treatment; and the treated assembly is machined to obtain the part. The insert is a rectilinear insert and the housing forms a rectilinear groove that extends beyond the insert and is open at each end, the groove being filled by a tab when the cover is placed on the metal body.

Abstract: A method of casting a metal ingot with a microstructure that facilitates further working, such as hot and cold rolling. The metal is cast in a direct chill casting mold, or the equivalent, that directs a spray of coolant liquid onto the outer surface of the ingot to achieve rapid cooling. The coolant is removed from the surface at a location where the emerging embryonic ingot is still not completely solid, such that the latent heat of solidification and the sensible heat of the molten core raises the temperature of the adjacent solid shell to a convergence temperature that is above a transition temperature for in-situ homogenization of the metal. A further conventional homogenization step is then not required. The invention also relates to the heat-treatment of such ingots prior to hot working.

Abstract: A method of forming at least one Micro-Electro-Mechanical System (MEMS) includes patterning a wiring layer to form at least one fixed plate and forming a sacrificial material on the wiring layer. The method further includes forming an insulator layer of one or more films over the at least one fixed plate and exposed portions of an underlying substrate to prevent formation of a reaction product between the wiring layer and a sacrificial material. The method further includes forming at least one MEMS beam that is movable over the at least one fixed plate. The method further includes venting or stripping of the sacrificial material to form at least a first cavity.

Abstract: An actuator manufacturing method includes alternately stacking a plurality of dielectric elastomer layers and a plurality of conductive rubber layers along the direction of thickness to form a sheet, and wrapping the sheet formed about a core to form a rolled sheet. When the sheet formed in the step of alternately stacking is wrapped about the core, the sheet is formed by the dielectric elastomer layers and the conductive rubber layers. Therefore, even if the dielectric elastomer layers in the sheet are made to be thin, the thickness of the entire sheet is prevented from being excessively thin.

Abstract: In an inductor including a coil, a drum type core constituted by a soft magnetic metal material and a resin material, and a filling member constituted by a soft magnetic metal material and a resin material in which a magnetic flux excited by aforesaid coil goes through aforesaid drum type core and aforesaid filling member serially, the present invention constitutes an inductor, wherein aforesaid drum type core is constituted by injection molding so as to include a receiving portion, aforesaid coil is arranged in aforesaid receiving portion, and aforesaid filling member is filled therein.

Abstract: A method of centering a disk of a hard disk drive includes arranging a disk on an upper end portion of a hub on which a plurality of disks are rotatably assembled, and assembling the disk on the hub by vibrating the hub. Accordingly, the disks and/or spacers may be easily assembled on the hub, a time of centering may be relatively much reduced, and a superior centering quality may be obtained.

Abstract: A method for fabricating magnetic transducer is described. The method includes providing a main pole having a bottom and a top wider than the bottom. The method further includes performing a high energy ion mill at an angle from a normal to the to of the main pole and at a first energy. The high energy ion mill removes a portion of the top of the main pole and exposes a top bevel surface for the main pole. The method also includes performing a low energy ion mill at second energy and a glancing angle from the top bevel surface. The glancing angle is not more than fifteen degrees. The second energy is less than the first energy. The method and system also include depositing a nonmagnetic gap.

Abstract: Generally, methods and processes for assembling magnetic components are presented herein. More specifically, conductors are wound around a substantially hollow bobbin. Portions of the conductors may be temporarily positioned outside the bobbin through slots in the flanges of the bobbin during the assembly process. Insulating layers may be wrapped around the conductors. The center legs of a pair of magnetic core halves may be inserted into the bobbin. The base of the magnetic core halves may have a passage to allow a conductor to pass therethrough at a height less than the height of the base.

Abstract: A method for making a positive temperature coefficient device includes: (a) forming a crosslinkable preform of a positive temperature coefficient polymer composition containing a polymer system and a conductive filler; (b) attaching a pair of electrodes to the preform; (c) soldering a pair of conductive leads to the electrodes using a lead-free solder paste having a melting point greater than 210° C.; and (d) crosslinking the crosslinkable preform after step (c).

Abstract: An assembly for positioning a retaining ring includes a mandrel having an outer diameter smaller than an outer diameter of a rotor. The assembly also includes a seal assembly for sealing a circumferential retaining ring around the mandrel or the rotor, the seal assembly comprising a pair of seal plates situated around opposing ends of the retaining ring. Further, the assembly includes a hydraulic expansion device for providing a fluid pressure for hydraulically expanding the retaining ring until an inner diameter of the retaining ring is greater than the outer diameter of the rotor. Furthermore, the assembly includes a displacement device for providing axial movement of the seal assembly and the retaining ring.

Abstract: A robotic end-effector for high-speed precision alignment and assembly of of a spacer ring onto a motor-hub assembly has a holding device operable for temporarily holding the spacer ring. The spacer ring is to be aligned and assembled to the motor-hub assembly. The robotic end-effector has a course alignment device operable for locating the holding device with respect to a locating feature that is coupled with the motor-hub assembly. The robotic end-effector has a retractor operable for disengaging the course alignment device from the locating feature. The robotic end-effector has a moveable base whereby lateral compliance is provided for the holding device, enabling motion of the spacer ring with respect to the motor-hub assembly, thereby enabling fine alignment of the spacer ring with the motor-hub assembly when the spacer ring touches the motor-hub assembly.

Abstract: A vehicle assembly line includes a plurality of carriers that support respective vehicle bodies to which vehicle underbody parts, which are parts that are fitted to the vehicle bodies from below the vehicle bodies, are fitted, and convey the vehicle bodies along the vehicle assembly line. The carriers support the vehicle bodies in such a manner that the longitudinal direction of each of the vehicle bodies is perpendicular to the conveyance direction in which the vehicle bodies are conveyed.

Abstract: A method for preparing a terminal end of a cable to connect to a cable connector is provided. The method includes stripping a jacket, an insulating layer, and a corrugated outer conductor from a first section of a coaxial cable, stripping the jacket from a second section of the coaxial cable, and axially advancing a terminal end of the corrugated outer conductor beyond a terminal end of the insulating layer, resulting in an open section of the corrugated coaxial cable having an open space between the corrugated outer conductor and the inner conductor. A tool for accomplishing the foregoing is further provided, and includes first and second opposing jaws that engage the inner and outer conductors, respectively, such that operating the tool causes a terminal end of the outer conductor to axially advance toward the terminal end of the inner conductor.

Abstract: A circuit assembly (34) resistant to high-temperature and high g centrifugal force is disclosed. A printed circuit board (42) is first fabricated from alumina and has conductive traces of said circuit formed thereon by the use of a thick film gold paste. Active and passive components of the circuit assembly are attached to the printed circuit board by means of gold powder diffused under high temperature. Gold wire is used for bonding between the circuit traces and the active components in order to complete the circuit assembly (34). Also, a method for manufacturing a circuit assembly resistant to elevated temperature is disclosed.

Abstract: A method of making a wiring substrate having at least one interconnection layer includes forming a first metal layer on a surface of a support member having at least one columnar through hole that exposes the surface of the support member, forming a columnar metal layer that fills the columnar through hole, forming an insulating layer on the columnar metal layer and on the first metal layer, forming an interconnection layer on a first surface of the insulating layer electrically connected to the columnar metal layer through the insulating layer, and forming, by removing at least an entirety of the support member and an entirety of the first metal layer, a protruding part including at least part of the columnar metal layer protruding from a second surface of the insulating layer opposite the first surface, and serving as at least part of a connection terminal of the wiring substrate.

Abstract: A method for manufacturing an electronic component embedded connector includes a first step for fixing a terminal to a fixing means; a second step for fixing electronic components to the fixing means; a third step for cutting connecting sections of the terminal fixed to the fixing means; a fourth step for connecting the electronic components fixed to the fixing means, to the terminal in which the connecting sections are cut off; and a fifth step for covering a section of the terminal other than terminal sections, and the electronic components by an insulating cover.

Abstract: The present invention relates to a method of forming a cam shaft by assembling a preliminary shaft having a predetermined outer diameter and a cam lobe including a cam-lobe shaft hole having a diameter larger than the outer diameter of the preliminary shaft.

Abstract: A method for producing an elastic plate for a liquid jet head, which includes etching a rolled metal plate based on a rolling direction of the rolled metal plate, to form an etched portion and a non-etched portion on the rolled metal plate. The thickness of the etched portion is thinner than the thickness of the non-etched portion and the rolling direction is substantially perpendicular to a long side of the rolled metal plate.

Abstract: The present invention is directed to a fluid conduit assembly. In accordance with one embodiment of the present invention, the inventive fluid conduit assembly includes a fluid conduit having an inlet, at least one outlet and a fluid flow passageway therebetween configured to allow for fluid to be communicated between said inlet and said at least one outlet. The inventive fluid conduit assembly further includes at least one damper disposed within the passageway of the fluid conduit. The damper includes a sealed vent configured to vent gases captured by the damper during a brazing process performed on the fluid conduit when unsealed.

Abstract: A process for providing a cushioned region (14) on a substrate (12) is disclosed. The substrate (12) is at least partially covered by a sheet (18) of preferably textured material. A skin (22) is coupled to the substrate (12) and a compressible material (24) (such as foam) is injected between the sheet (22) and skin (24). The sheet (18) is intended to promote adhesion to the compressible material (24) (e.g. mechanical and/or chemical joining or bonding). If portions of the coversheet (18) are exposed on a visible surface, the coversheet may also be configured to provide a decorative or ornamental appearances.

Abstract: A method of making a sunshade device includes the steps of: attaching two tension cords to left and right sides of a sunshade cloth, and allowing the tension cords to extend beyond front and rear ends thereof to form front and rear cord extension sections; fixing the rear cord extension sections to a latch unit and a spring unit, respectively, and inserting the latch and spring units respectively into opposite ends of a tubular winding shaft; clamping the rear end of the sunshade cloth; drawing the front cord extension sections to move the winding shaft close to the rear end of the sunshade cloth; using two cord-pulling tools to pull the respective front cord extension sections; fixing the front cord extension sections to the respective end pieces; and fixing the winding shaft to the sunshade cloth.

Abstract: A method for providing a natural stucco appearance for a steel structural panel comprises providing a steel sheet and coating the exterior surface with a low gloss protective coating, and then embossing the exterior surface with a low relief pattern. The steel sheet is then embossed with a second, higher relief pattern under high pressure. The double embossment together with the low gloss coating achieves a natural stucco appearance.

Abstract: The invention relates to a hair removal apparatus (100) having a base body (10) and a slide (20), which is mounted thereon to be movable (displaceably). At least one wet shaver unit (40) comprising a razor blade, such as a blade cartridge for wet shaving, is mounted on the slide. Due to the mobility of the slide (20), this wet shaver unit (40) is protected from damage in the event of impact of the hair removal apparatus, e.g., in a fall to the floor. Certain target positions of the slide (20) can be secured with a slip clutch, such that they become unlocked on exceeding a minimum force that is acting and thereby release a movement of the slide.

Abstract: A hair removal device is provided, comprising a handle and a collapsible reservoir suitable for containing a fluid to be dispensed during use of the hair removal device, the hair removal device additionally comprising a container enclosing the collapsible reservoir, a fluid outlet adapted to allow fluid to exit both the collapsible reservoir and the container, an orifice adapted to allow air to flow in or out of the container, and a suction device, adapted to suck fluid out of the collapsible reservoir through fluid outlet. The container can be rigid, deformably rigid, or a combination of both.

Abstract: Described herein is a hair removal apparatus with a housing and an actuator head movable in the housing. The actuator head accommodates an actuator system that removes the hairs and is adapted to be driven by an electric drive mechanism arranged in the hair removal apparatus. The actuator system is movable into at least one active position for hair treatment. The actuator head is freely rotatable in the housing about an axis of rotation for adjustment of an active position. Using a single hair removal apparatus it is thus possible to employ various hair treatment systems such as long-hair cutters, short-hair cutters, or epilators, requiring only the actuator head to be turned about its bearing axis until the cutting unit provided for the respective hair treatment operation is turned into the actuator plane.

Abstract: A cutting tool includes a first lever having a first end and a second end, the first end being connected to a second elongated element in an articulated manner at a third pivot point and the second end being arranged to engage with a tongue in a metal plate to transmit force from the second elongated element to a first blade in the metal plate so as to perform a cutting movement with a cutting jaw when the first and the second elongated elements are shifted towards one another. The cutting tool also comprises an engagement device provided in the tongue and arranged to receive the second end of the lever optionally at two or more engagement points with respect to the first pivot point so as to perform stepwise cutting movements. The engagement points are placed in the tongue successively away from the third pivot point.

Abstract: The present invention is to provide an assisted-opening folding knife, which includes a handle having a first positioning groove and a first recess, a blade capable of pivotally springing out of the handle, and a pushing device. A first post on the blade is moved along the first recess while being rotated into the handle, and a second post on the blade is exposed outside the handle while being received in the handle. The pushing device includes a pushing element located in the first positioning groove and a second spring provided between the pushing element and the first positioning groove, so as for the pushing element to move along the groove. Thus, while the blade is rotated into the handle, the first post presses and passes the tip of the pushing element and is then blocked by the pushing element, thereby preventing the blade from springing out of the handle.