Abstract: A quick fastener by means of which at least a first and a second component are connectable to each other. The quick fastener includes a fastening bolt having a fastening thread of a first spiral direction, which is fastenable at the second component, and a compressible pretension element which is fastenable at the first component. The compressible pretension element includes a pretension thread at a radial inner side having a second spiral direction opposite to the first spiral direction, a hollow cylindrical thread element which is screwable with an outer thread at a radial outer side into the pretension thread of the pretension element having an inner thread at its radial inner side into which the fastening thread of the fastening bolt is screwable. At least a constructive rotation protection is provided between the hollow cylindrical thread element and the compressible pretension element. A production method for the quick fastener is further provided.

Abstract: A wear member assembly has a wear member, a wear member receiver with at least first and second contact portions and at least one aperture to receive at least one wear member locating member of the wear member. An attachment mechanism, releasably attaches the wear member to the receiver has at least one moveable attachment member and at least one respective fastening means. Actuation of each of the fastening means moves the associated attachment member to apply a retaining force to one of the contact portions of the receiver and causes the respective wear member locating member to apply a retaining force to the other of the contact portions of the receiver.

Abstract: A power tool includes a replaceable blade, a fixing device for clamping and securing the blade, a control circuit for controlling a driving device, and a main switch electrically connected to the control circuit. A safety device prevents the blade from moving when the fixing device is opened.

Abstract: A shear tension device comprising an adjustment screw and a lock wherein the lock is configured to engage with the adjustment screw and maintain tension properly set by the factory in the shears until service of the shears is required.

Abstract: An adjustment device for manual cutting tools is provided. The cutting tool for which the device is intended takes the form of pruning shears having two arms with the respective cutting blades thereof hinged to one another by a transverse bolt forming the main element of the device. A tightened nut for locking the bolt is provided with a transverse hole into which a lateral locking screw is screwed, thereby enabling the hinge to be adjusted. The nut and the locking screw are positioned in a recess in the cutting blade such that the nut cannot rotate when the bolt is being manipulated using a protrusion of the nut housed in a cavity in the cutting blade. The through-hole provided in the cutting blade for the bolt includes a bushing which enables the bolt to be better adjusted in the hole.

Abstract: An apparatus includes a pair of handles in which each handle comprises a tab extending from a top of the handle. The handles are rotatably joined at the tabs. A two-piece fulcrum transfers a force from the pair of handles. Each piece comprises a bottom portion for rotatably joining to a one of the handles, a top portion and an arm extending from the piece for rotatably joining the pieces. A two-piece head forms a craw in which each piece comprises a bottom portion rotatably joined to the top portion of fulcrum and a blade having an indentation for engaging an anchor bolt of a floor toilet. A pivot point lever rotatably joins the pieces, generally aligns the blades and transfers forces from the fulcrum to a cutting force on the bolt where a length of the bolt can be cut while mitigating damage to a thread of the anchor bolt.

Abstract: A pair of gardening shears include two cutting blades pivotally connected with each other, two movable members each having a first side mounted on a respective cutting blade, two fixing members each mounted on a second side of a respective movable member, two locking bolts each extended through the fixing members, the movable members and the cutting blades, and two locking nuts each screwed onto a respective locking bolt. Thus, the cutting blades are limited by the fixing members and the locking bolts so that the cutting blades are juxtaposed to each other closely without producing a gap between the cutting blades, thereby facilitating a user operating the gardening shears.

Abstract: Surgical and hairdressing scissors having an adjustable, articulated thumb ringlet rotatably connected to a handle by a flexible pin.

Abstract: A pair of improved scissors is provided herein, which separates the blades and handles of the pair of scissors into individual parts. These parts are joined at the pivot point by a locking mechanism. By adjusting the locking mechanism, the included angle between the blades and handles of the pair of scissors can be varied easily in accordance the requirement of the application. In addition, with the present invention, the handles can also be replaced by those that are safer and more comfortable to operate. As such, the stress and burden of the user's fingers and wrist can be relieved in operating the pair of scissors.

Abstract: Pruning scissors comprise a blade and a counter-blade each integral with a grip and mounted so as to be pivoted around a threaded swivel pin cooperating with an adjusting nut of the blade and counter-blade. The nut is rotationally integral with a toothed wheel meshed with a retainer toothed member attached to the pruning scissors counter-blade through a blocking screw. The toothed wheel has an axial opening whose outline corresponds to the external outline of the adjusting nut and is adapted to be inserted around the nut. The retainer toothed member is a toothed gear and the toothed wheel and the toothed gear comprise a respective complementary device adapted to retain the toothed wheel around the nut against any axial movement when the gear is meshed with the toothed wheel.

Abstract: A cutting tool which has a first cutting blade which is mounted in a scissors arrangement with a second cutting blade. The first cutting blade has formed at one end thereof a first cutting element and at the opposite end thereof a second cutting element. The second cutting blade has formed thereon a third cutting element at one end thereof and at the opposite end thereof a fourth cutting element. The cutting blades are pivotally connected intermediate their ends by the inner end by a pair of handle members with the cutting blades being captured between the handle members. The handle members are to be pivotable between a first position and a second position. When in the first position, the first cutting element and third cutting element are extended and capable of performing a cutting operation on an exterior structure.

Abstract: A pair of scissors, in particular haircutting scissors, has a hinged joint consisting of a hinge screw (3) and a screw nut (4). The hinge screw (3) is essentially non-rotatably connected to one scissors half (2) and the screw nut (4) engages in a bore (12) in this scissors half (2). Situated in said bore (12) is a first flexible body (15) which, under contact pressure, sits against the end of the screw nut (4) facing the head (5) of the hinge screw (3) and against the shaft (9) of the hinge screw (3). To ensure that even a short screw nut will be securely held and can be precisely adjusted, the invention provides that the screw nut (4) has on its outer circumference a groove (18) in which is situated a second flexible body (19) which, under contact pressure, sits against the screw nut (4) and the bore (12) in the scissors half (2).

Abstract: Pruning of scissors comprise a blade (1) and a counter-blade (2) each integral with a grip and mounted so as to be pivoted around a threaded swivel pin (10) cooperating with an adjusting nut (3) of the blade (1) and counter-blade (2), wherein the nut (3) is rotationally integral with a toothed wheel (4) meshed with a retainer toothed member attached to the pruning scissors counter-blade (2) through a blocking screw (6).

Abstract: A hedge trimmer assembly for trimming hedges and trees. The hedge trimmer assembly includes a head assembly comprising a rotatable trimmer head and a debris shield. A cutting line extending from the rotating head. A pole with the head assembly pivotably coupled to a first end of the pole. An adjustable head locking assembly for selectively locking the head assembly into a static position relative to the pole. A handle extending from the pole. A motor operationally coupled to the trimmer head. The motor is coupled to a second end of the pole. A trigger operationally coupled between the motor and the trimmer head.

Abstract: An adjustable and releasable fastener for a pivoting hand tool includes a first bushing and a second bushing which are press fit in respective tool elements, the second bushing extending into a hole in the first bushing to form a pivot bearing. The first bushing includes a cap with a recess having a slotted opening connecting to the hole in the first bushing. A bolt is extends through the first and second bushings, with a bolt head disposed in the recess. A nut is fastened to a threaded end on the second bushing side. The nut can be tightened or loosened to adjust the tension on the bolt. The bolt head is shaped to allow it to pass through the slotted opening in the first bushing when the tool elements are pivoted beyond an operating range, permitting quick release of the tool elements.

Abstract: The invention is directed to a cutter blade support for a pair of knives of a hedge trimmer. The cutter blade support includes first and second bars conjointly defining a space therebetween. First and second cutter blades are arranged in the space and define respective sets of apertures formed therein. The first bar has openings formed therein and a plurality of threaded bolts are held in the second bar. The threaded bolts extend through the respective sets of apertures and have respective end portions extending through the openings in the first bar. Attachment nuts are disposed on the first bar and threadably engage corresponding ones of the end portions. The threaded bolts are pressed into the second bar so as to be tightly held therein and so as to be nonrotatable with respect thereto.

Abstract: A scissors useful particularly by hairdressers comprises a movable scissors blade, a stationary scissors blade and a pivotal connection connecting the blades and consisting of a threaded pin having a shank, a head and a threaded steel nut provided with a projection formed with an annular groove extending over the periphery of the projection. The threaded pin passes with its shank through holes of the blades and is non-rotatably held by one of the scissors blades. A circular recess is provided in the stationary scissors blade and defines a circular wall, the circular wall being arranged to guide the threaded steel nut via the projection thereof. An annular body consisting of resilient material is arranged in the annular groove and engages the projection and the circular wall of the circular recess with contact pressure.