Abstract: A pair of pruning shears has two bodies pivotally mounted together with a pivot, a spring connected between the bodies, and a lock device arranged near the pivot. The lock device comprises a step hole defined in one of the bodies near the pivot, a locking hole defined in the other body, a latch post moveably mounted in the step hole, a biasing member to support the latch post, and a knob. The knob is rotatably mounted on the body with the step hole. The knob has a bottom abutting the latch post and a cavity defined in the bottom. When the bodies are pushed toward to each other, the step hole will align with the locking hole. The latch post can be pushed to engage with the locking hole by the bottom of the knob. This can provide a secure positioning effect to the latch post. The latch post will not escape from the locking hole when the pruning shears bump with another object.

Abstract: Scissors for cutting grass includes a head having an end formed with an opening having a plurality of internal teeth, a main body provided with a cylindrical member having a neck at an intermediate portion and a geared portion at an inner portion, the main body being engaged with the head with the cylindrical member fitted into the opening, a handle pivotally connected with the main body, a positioning member inserted between the head and the main body, a linking wire having an end inserted through the cylindrical member to connect with the handle, a movable blade having an end connected with another end of the linking wire, and a stationary blade pivotally connected with the movable blade and mounted on a bottom of the head by screws.

Abstract: A scissors structure includes a first blade portion, a second blade portion, a restoring spring, and a substantially I-shaped locking member. The first blade portion includes a first handle defining a first chamber having a front end provided with a first locking stub and a rear end provided with a T-shaped first guide rail having a first guide track. The second blade portion includes a second handle defining a second chamber having a front end provided with a second locking stub and a rear end provided with a T-shaped second guide rail having a second guide track provided with a snapping boss. The restoring spring has a first end secured to the first locking stub and a second secured to the second locking stub. The locking member is slidably mounted between the first guide rail and the second guide rail and has two sides each provided with a T-shaped guide slot for receiving the first guide track and the second guide track.

Abstract: A locking mechanism for scissors-type shear allows closing and locking of the shear even when the locking element is placed in a locked position before the shears are closed. The shear includes first and second blade assemblies pivotably connected to one another. Each blade assembly includes a blade and a handle. A locking mechanism is slidably mounted on a first handle. The locking element is moveable between locked and unlocked positions. In the locked position, the sliding lock mechanism engages a catch element on the second handle to lock the shear in the closed position. The locking mechanism includes resilient arms and the catch element includes inclined cam surfaces. When the locking mechanism is placed in a locked position before the shear is closed, the ends of the resilient arms engage the inclined surfaces of the catch element, allowing the resilient arms to flew outwardly and pass over the catch elements.

Abstract: A locking mechanism for scissors-type shear allows closing and locking of the shear even when the locking element is placed in a locked position before the shears are closed. The shear includes first and second blade assemblies pivotably connected to one another. Each blade assembly includes a blade and a handle. A locking mechanism is slidably mounted on a first handle. The locking element is moveable between locked and unlocked positions. In the locked position, the sliding lock mechanism engages a catch element on the second handle to lock the shear in the closed position. The locking mechanism includes resilient arms and the catch element includes inclined cam surfaces. When the locking mechanism is placed in a locked position before the shear is closed, the ends of the resilient arms engage the inclined surfaces of the catch element, allowing the resilient arms to flew outwardly and pass over the catch elements.

Abstract: Rotary cutting pliers for cutting electric wires, having large, medium and small diameters. An electric wire is inserted into an insertion space that is open from the rotary center of a first bearing disk mounted on a first unit of the pliers so that the electric wire comes in contact with the rotary center. The wire is cut by a curved cutter in the insertion space or by a curved or circumferential cutter on a rotor embedded in the first bearing disk. A second bearing disk mounted on a second unit has a second insertion space that is inclined from the rotary center. A curved cutter in a third insertion space of the second bearing disk is open from the rotary center of a rotary disk. The rotary disk has a ratchet on the circumference that can be incorporated into the first bearing disk to complete contact with aligned supporting points at the intersection of the insertion spaces of the first and second bearing disks and with the surfaces of the curved cutters of the first and second bearing disks.

Abstract: A magnetically latching butterfly knife 10 having a magnetic latch 20 coupled thereto. The magnetic latch 20 is coupled to the magnetically latching butterfly knife 10. The magnetic latch 20 is coupled to at least one of the handle components 14 and/or 15. The magnetic latch 20 has at least one magnetic component 19 and at least one magnetic attracting surface 10A (i.e. magnet or metal surface) that are able to couple to at least one of the handle components 14 and 15. At least one magnetic component 19 and at least one magnetic attracting surface 10A magnetically attract and couple to each other to be able to provide open and closed latching operations for the butterfly knife 10. The magnetic latch 20 secures the first handle component 14 and the second handle component 15 in an open latched position and also in a closed latched position. The magnetic latch 20 may be configured and coupled to the butterfly knife 10 in many ways in order to provide the open latched and closed latched positions.

Abstract: A shear device includes a pair of handles having one end pivotally coupled together at a pivot shaft, and a pair of cutter blades secured to the handles and each having a notch. A knob is slidably engaged in the handles and includes a pin for engaging with the notches and for securing the cutter blades together. A button is slidably engaged in one of the handles. The knob includes a pawl for hooking to the button and for securing the knob to the button such that the knob may be secured to the handles and such that the pin may not be disengaged from the notches of the cutter blades.

Abstract: A pair of scissors has a first blade, a second blade, a first grip connected to the first blade, a second grip connected to the second blade, a torsion spring disposed between the first grip and the second grip, and a hook ring fastening the first grip and the second grip movably. The first grip has a first upper handle and a first lower handle coupled to the first upper handle. The second grip has a second upper handle and a second lower handle coupled to the second upper handle.

Abstract: A pair of shears comprises a first blade connecting to a first grip and a second blade connecting to a second grip. A first notch is formed at the bottom of the first blade. A second notch is formed at the bottom of the second blade. A round hole is formed on the front portion of the first grip. A tongue is positioned on the upper surface of the front portion of the first grip. The positioning device has at least a first hole to receive a first pivot and a second hole to receive a second pivot. A first and second recesses are formed in the upper inner periphery of the positioning device. An opening is formed in the positioning device to receive the front portion of the first grip. The first pivot passes through the first hole and the round hole to fasten the positioning device and the first grip pivotally.

Abstract: A cutting tool designed for hand cutting/harvesting of grapes and trimming shrubs and flowers. It has two elongated members pivotally secured together at a locus axis passing perpendicularly through their respective head portions. The surfaces of the respective head portions that mate against each other have annular grooves that removably receive a coiled spring between them. The coiled spring functions to keep the cutting edges of the tool separated when there isn't any hand pressure squeezing the respective hand portions toward each other to perform a cutting operation. A brass washer under the head of the bolt holding the respective head portions together assures smooth pivotal movement of the head portions when the respective hand portions are squeezed toward each other.

Abstract: An improved locking mechanism for a cutting tool (1) is disclosed. The locking mechanism includes a locking block (15) transversely located through or on one handle (12) of the cutting tool (1). The locking mechanism incorporates a shaped spring (18) adapted to restrain the locking block (15) in either the locked or unlocked position.A cutting tool (1) having a pair of handles (11,12) operable to move at least one cutting blade relative to a second cutting blade or anvil and including the locking mechanism described is also disclosed.

Abstract: A hand tool for cutting, such as a pair of snips, includes a pair of opposed elongated members, each member comprising a jaw at a front end portion thereof, a handle at a rear end portion thereof, and a midportion where the members cross over each other. A pivot unites the midportions for scissor-like movement of the handles and jaws about the pivot, and a spring biases the handles and jaws to an open position. A releasable locking mechanism is provided to secure the handles and jaws in a closed position. According to the invention, at least one of the members includes a metal plate having a forwardly extending blade which comprises one of the jaws and a rearwardly extending tang. The handles, pivot and locking mechanism are each made of a moldable material molded onto the metal plate, such that one of the handles is molded onto the tang of the metal plate, and the pivot extends through a central hole in the metal plate.

Abstract: A soft touch scissors including a first or lower blade assembly having a handle and a blade having a tang molded in the handle and a second or upper handle assembly having a handle and a blade having a tang molded in the handle, the blade assemblies being pivotally connected, and biased by a spring to an open position, a rib on the top of the lower handle assembly and a rib on the bottom of the upper handle assembly located in a position to engage the rib on the lower handle assembly and a latch slidably mounted on the upper handle assembly for movement into engagement with the rib on the lower handle assembly to lock the handle assemblies in a closed position.

Abstract: The present invention relates to tools such as scissors, shears, pruners, and the like, which are resiliently biased to an open position, and which have a locking mechanism to keep these tools in a closed configuration. More particularly, this invention is concerned with tools having a pair of cooperatively engaging members provided with a resilient lock slidable within slots formed in these members. The lock includes a button having a yieldable head merging into a shank extending through the slots, the shank being joined to a cap. The head and cap have concavely shaped faces so that they are effectively in contact with the tool in respective annular regions of the tool, the area of these regions being proportional to the degree of compressive force applied to the lock.

Abstract: A safety latch device for a paper cutter movably attached to the cutting arm of the paper cutter. The safety latch has a base catch, an arm catch and a trigger. The base catch engages with an extended portion of the base of the paper cutter to prevent a user from raising the cutting arm. The arm catch engages with a top surface of the cutting arm to prevent the safety latch from interfering with the cutting arm during operation. The trigger allows the user to disengage the base catch from the extended portion of the base so the cutting arm can be lifted.

Abstract: A scissors including a first handle assembly and a second handle assembly pivotally interconnected for movement between open and closed positions. A latch mounted on one of the handle assemblies for movement into engagement with the other of the handle assemblies on closing the scissors, the latch being movable on one handle assembly into engagement with the other handle assembly to lock the handles in a closed position and a reversible sheath operatively engaging the handle assemblies to enclose the scissor blades on the handle assemblies.

Abstract: In garden shears the locking device which holds the shear grips in closed position against the force of an opening spring is developed as a slide grip which lies free both on the top and on the bottom of the one hand grip so that this slide can be actuated by the thumb of both the right hand and the left hand without it being necessary also to use the other hand. The slide grip has spring detents which cooperate with indentations in said one hand grip.

Abstract: A garden shears is provided with replaceable knives mounted on elongated grips which are connected at a pivot joint that is constructed of a steel bushing that takes up radial loads (shear and flexure). Axial loads are taken up by a screw bushing which passes through the steel bushing and a joint screw threadably engaged with the screw bushing. Both the joint screw and the screw bushing have widened shallow heads with slightly convex surfaces that pass into surfaces of the shears. The replaceable knives are supported at the rear by extensions of the respective grips in a manner such that the knives are not required to take up bending moments.

Abstract: An all purpose pair of scissors including a first blade assembly and a second blade assembly, the assemblies being pivotally connected for opening and closing movements, the first blade assembly including a handle having a first catch and a recess in the handle adjacent the first catch, the second blade assembly including a handle having a second catch and a recess in the handle adjacent the second catch, the first and second catches being so located that on closing the first and second blade assemblies the first catch will be seated in the recess in the second handle and the second catch will be seated in the recess in the first handle, the first and second catches interengaging each other on opening the blade assemblies.

Abstract: A nail clipper is provided including a pair of crossed and pivotally connected levers defining handle ends and blade ends. A bowed spring is disposed between the handle ends and includes split sleeve portions engaged with and extending at least partially about and anchored relative to the handle ends against longitudinal displacement relative thereto and a locking sleeve is removably telescoped over the handle ends to releasably retain the latter against swinging movement away from each other. Further, the blade ends of the levers include opposing arcuate cutting edges abuttingly engaged with each other when the blade ends are in their closed positions and which, together, open laterally outwardly of the clipper in one direction along the axis of relative pivotal movement of levers.

Abstract: A pair of kitchen shears with hiding spring, comprised of two parts pivoted together to form into two handles and two cutting blades. The two cutting blades have each a recess at one side facing against each other defining therein a receiving space for holding a torsion spring which is secured in position by a pivot to increase shearing force. Walnut crusher or small device for added function may be made on the two handles.

Abstract: A cutting tool has respective first and second tool members cooperating to effect a cutting stroke between an open position and a closed position. The cutting tool has a first tool member having a first handle rigidly connected to a first cutting member, and a second tool member including a second cutting member pivotally secured to the first cutting member and including a tab and an elongated shank portion formed thereon and defining a channel therebetween. The second tool member further includes a fulcrum rigidly secured to the second cutting member and configured for sliding interaction with the shank portion of the second cutting member to effect the cutting stroke. In addition, a locking member is slideably mounted in a longitudinally extending slot formed in the first handle. The locking member is slideable within the slot from a locked position in which it is received within the channel to an unlocked position in which it is located outside of the channel.

Abstract: A pair of secateurs is provided comprising two handle (2,4) and blade (10,12) modules pivotally connected together such that when the two handles are moved towards one another, the two blades move towards one another to perform a cutting operation. The secateurs are such that each blade (10,12) can be released from each associated handle (2,4) without the use of tools, for replacement by a new or different blade. The invention makes it possible to replace worn or damaged blades without the need for any tools such as a spanner or screwdriver. It further allows the same pair of handles to be used with blades of differing configurations, making the secateurs much more versatile than known secateurs.

Abstract: A hand tool according to the invention, such as a pair of snips, has a releasable locking mechanism whereby the jaws of the tool can be secured in a closed position. The locking mechanism includes a pair of projections disposed in offset, opposing positions on the handles of the tool. The projections have respective holes which are brought into alignment when the tool handles are brought together to close the jaws. A suitable mechanism, such as a rectactable button, engages both holes and holds the handles together against the force of a spring which biases the jaws towards an open position. The locking mechanism can include a groove-and-projection detent mechanism which allows the jaws to be unlocked by simply squeezing the handles.

Abstract: An instrument for cutting, gripping or clamping includes a base arm with a fixed jaw at one end thereof, and a movable jaw pivotally attached to the arm adjacent the fixed jaw. Also included is a shank, one end of which is pivotally connected to the movable jaw, with the shank extending generally parallel to the arm over its full length. An elongated handle which overlies the shank includes a laterally extending section which is pivotally connected to the other end of the arm and to the other end of the shank. When the handle is pivoted toward the shank, the movable jaw is caused to pivot toward the fixed jaw, and when the handle is pivoted away from the shank, the movable jaw is caused to pivot away from the fixed jaw.

Abstract: A tool having an insert portion mounted on a handle portion which handle portion will actuate a pincher-like tool arrangement on the free end of the insert portion characterized by a locking arrangement for holding the pincher-like tool in a closed position by holding the handle portion in the closed position and a stop arrangement to limit the amount of movement of the pincher-like tool toward the closed position.

Abstract: A hand tool of the scissors type includes two pivotally-movable operating members or jaws or blades and two pivotally-movable handle members which members are readily separable from each other and are interrelated by a single pivot bolt extendable through the four components so that relative movement between each operating member and its respective handle member is precluded. The components are readily replaceable without supporting rivets, pins, screws or the like. Novel locking means allow easy tool operation both in the opening stroke preparatory for use and in the closing operating stroke and for assuming the safe locked position when the tool is fully closed.

Abstract: The hand tool comprises two members, for example male and female blade members in the case of a garden pruner, each formed with a tang portion which extends within a handle. For locking the members in a closed position a catch pin unit is fitted to one of the handles; the unit comprises a catch button secured slidably to a mounting plate by engagement with a spring plate on the opposite side of the mounting plate. The spring plate has resilient fingers which hold the spring plate releasably in selected positions. A catch pin which engages in the catch button is movable thereby along a slot in the associated member into and out of a recess in the other member to lock or release the members.The members are releasably secured to the handles by a pivot bolt which passes through registering apertures in each member and associated handle. A recess in a said tang portion forms a seating for a stop cushion which extends to the surface of the handle through an opening in the handle above the recess.

Abstract: The hand tool comprises two members, for example male and female blade members in the case of a garden pruner, each formed with a tang portion which extends within a handle. For locking the members in a closed position, a catch pin is slidable in a slot of one member to engage a recess in the other member. The catch pin has enlarged head and foot portions which enable the pin to be inserted into an enlarged end portion of the slot before fitting the members together, and the overlap of the assembled members prevents movement of the pin into the enlarged slot portion after assembly, and so retains the pin in the slot.Mutually opposite recesses in the tang portions of the members assist in retaining the handles on such tang portions and form seatings for a barrel spring by which the handles are urged apart.

Abstract: An elongated pressure sensitive adhesive element for attachment within a recess on a component part of a shear, the upper side of the sheet carrying indicia for indicating the manufacturer or distributor or seller of the shear. The shear has pivoted crossed blades normally biased to opened position and is provided preferentially with a recess or inset in the spine or upper wall of the upper handle, into which an ornamental and/or information-bearing label may be inserted: (a) to impart a pleasing appearance to the tool; (b) to conceal an unsightly rivet which attaches the biasing spring to the handle; and (c) to carry information such as the manufacturer's or distributor's name, his trademark, tool model or number, or the like. The label and upper handle may be of contrasting colors to enhance tool attractiveness.

Abstract: A shear having pivoted crossed blades normally biased to opened position is provided with a modular type latch allowing the single handed locking of the handles in a locked position or releasing of the locked handles into an opened position. The latch is integrated as a functional unit for ready association with the other previously assembled shear components by the mere insertion of the unit in situ whereat the shear is immediately available for operational use, securement being obtained without the need for screws or springs or hooks or like supplementary securement means, the latch being self retaining, once inserted. The salient feature is that the latch, which in one key sense is not fixedly related, is an independent unit which is a part of the total structure and serves as the means for latching and unlatching the blades in desired relationships.

Abstract: A releasable latch is provided upon the handles of a pair of relatively pivotable operating members which are normally biased apart by spring means. The latch comprises opposed arm members on the handles which in part overlie each other with one of the arm members having a latch aperture and the other having a latch post extending into the latch aperture. One arm member is provided with an integral hinge portion, and the latch post has a shoulder thereon which engages with a cooperating shoulder surface on the other arm member about the latch aperture therein. The spring means biases the handles apart so as to maintain the cooperating shoulders in engagement in the closed position. One or both of the latch post and latch aperture is desirably provided with a cam surface to move the latch post within the latch aperture into a position wherein the cooperating shoulder surfaces will engage.

Abstract: A pruning shear of the hook style or pass-by type wherein the crossed levers are pivoted in combination with a power element for absorbing the impact generated upon the completion of the severing function as the shear is moving in shear closing direction. The shear has a cutting blade, a hook type blade, a yoke shaped upper handle straddling the two blades, a lower handle integral with the cutting blade, a leaf spring biasing the two handles to opened position, and a power element wherein a contained or restricted force producing material of rubber or like elastomeric form is deformable as a damping mechanism for absorbing the impact as momentarily sustained when the work engaged between the blades is finally and fully severed.

Abstract: A hand tool, such as a pruner, has two pivotally movable members which are biassed open by a spring. A catch, for locking the tool in the closed position, is fitted into a non-circular aperture in a part of one of the members which overlaps the other member, the shank of the catch being undercut to allow the catch to rotate in the aperture, but prevent its withdrawal from the aperture except in the rotational position in which it was inserted into the aperture. A detent is provided, for rotation by the catch to engage and lock the members together. The member containing the catch is so shaped that the detent can be fitted to or withdrawn from the catch only in a position in which the shank of the catch is locked in the member. Consequently, so long as the detent remains in position in the catch, the catch cannot be removed.

Abstract: The pincers is of the vice-pincers type and comprises a main lever and a fixed jaw integral with the main lever. A pivotable jaw is pivoted to the main lever and a toggle device connects the pivotable jaw to another part of the main lever. The feature of the pincers is that the toggle device comprises an auxiliary lever pivoted to the pivotable jaw and performing the function of a lever for locking the pincers and a lever of adjustable length which is pivoted at one end to the auxiliary lever and at the opposite end to the main lever.