Abstract: A fastener driving tool includes a housing unit with a fastener striking opening, a striking member with an engaging slot, a locking member with a front engaging end detachably engaged to the engaging slot, and a handle unit pivoted on the housing unit. When the handle unit is pressed down to shift the driving tool from an initial to an energy-storing state, the locking member is driven to move the striking member away from the striking opening. When the handle unit is pressed down continuously to shift the driving tool from the energy-storing to a striking state, the front engaging end is driven to disengage from the engaging slot, and the striking member is driven to move down to the striking opening for performing a striking stroke.

Abstract: A fastener driving tool includes a magazine unit, a handle, a striking plate, an energy restoring member and a wire bending spring disposed to a housing unit. The housing unit includes an inner housing assembly made from a plastic material, and an outer housing assembly made from a metal material and covering the inner housing assembly. The wire bending spring is biased for storing a striking energy for the striking plate, and includes an extending section and a backwinding section. The extending section has first and second ends. The backwinding section is connected with the second end, and extends and bends toward the first end to terminate at a terminal end portion. The ratio of a height to a width ranges from 1:1 to 1:1.6.

Abstract: A fastener driving tool includes a housing unit with a fastener striking opening, a striking member with an engaging slot, a locking member with a front engaging end detachably engaged to the engaging slot, and a handle unit pivoted on the housing unit. When the handle unit is pressed down to shift the driving tool from an initial to an energy-storing state, the locking member is driven to move the striking member away from the striking opening. When the handle unit is pressed down continuously to shift the driving tool from the energy-storing to a striking state, the front engaging end is driven to disengage from the engaging slot, and the striking member is driven to move down to the striking opening for performing a striking stroke.

Abstract: A staple gun is adapted for driving out a frontmost staple of a staple strip and a frontmost press piece of a press piece strip simultaneously. The staple gun includes a casing unit adapted for receiving the staple strip and the press piece strip, a striker unit adapted for striking the frontmost staple and the frontmost press piece out of the casing unit through an exit opening, and a loading unit including a staple holder, a press piece pusher that is adapted to abut against a rear end of the press piece strip, and a press piece spring that is connected between the press piece pusher and the staple holder for maintaining contact between the press piece strip and a front portion of the casing unit.

Abstract: A staple gun is adapted for driving out a frontmost staple of a staple strip and a frontmost press piece of a press piece strip simultaneously. The staple gun includes a casing unit adapted for receiving the staple strip and the press piece strip, a striker unit adapted for striking the frontmost staple and the frontmost press piece out of the casing unit through an exit opening, and a loading unit including a staple holder, a press piece pusher that is adapted to abut against a rear end of the press piece strip, and a press piece spring that is connected between the press piece pusher and the staple holder for maintaining contact between the press piece strip and a front portion of the casing unit.

Abstract: An adjustment mechanism is adapted to be installed in an armrest that includes a support member and an arm member disposed over and mounted rotatably to the support member. The adjustment mechanism includes a fixed unit adapted to be fixedly mounted in the support member, and a rotating unit adapted to be co-rotatable with the arm member. The fixed unit includes an elastic plate formed with a plurality of notches, and a joint block having a plurality of concavities. The rotating unit includes a linking plate having two rotating columns, and an engaging component. The rotating columns removably engage two corresponding ones of the notches, and the engaging component removably engages one of the concavities of the joint block.

Abstract: A spare magazine is adapted to be installed in a stapler, and includes a casing unit, a pivot member and a sliding carrier. The pivot member is pivotally disposed in the casing unit, and has a positioning pin. The sliding carrier has a carrier body slidably received in the casing unit, and a main track portion protruding from the carrier body, and having an island block and a surrounding wall that cooperatively define a main track. The sliding carrier is slidable relative to the casing unit between a closed position and a first open position. The positioning pin of the pivot member is inserted into the main track and is slidable in the main track along a heart-shaped route during the sliding movement of the sliding carrier.

Abstract: A cutting tool of a hole punch has an outer circumferential wall extending in an up-down direction and surrounding an axis, and a cutting surrounding surface extending and inclined inwardly and upwardly from a bottom peripheral edge of the outer circumferential wall toward the axis. The cutting surrounding surface has upper and lower cutting surrounding edges, and defines front and rear cutting edges. The front cutting edge has first and second lower points on the lower and upper cutting surrounding edges. The rear cutting edge has first and second upper points on the lower and upper cutting surrounding edges and higher than the first and second lower points. A concaved paper pressing curve surface extends upwardly from the upper cutting surrounding edge to define a paper moving recess.

Abstract: An adjustment mechanism is adapted to be installed in an armrest that includes a support member and an arm member disposed over and mounted rotatably to the support member. The adjustment mechanism includes a fixed unit adapted to be fixedly mounted in the support member, and a rotating unit adapted to be co-rotatable with the arm member. The fixed unit includes an elastic plate formed with a plurality of notches, and a joint block having a plurality of concavities. The rotating unit includes a linking plate having two rotating columns, and an engaging component. The rotating columns removably engage two corresponding ones of the notches, and the engaging component removably engages one of the concavities of the joint block.

Abstract: A spare magazine is adapted to be installed in a stapler, and includes a casing unit, a pivot member and a sliding carrier. The pivot member is pivotally disposed in the casing unit, and has a positioning pin. The sliding carrier has a carrier body slidably received in the casing unit, and a main track portion protruding from the carrier body, and having an island block and a surrounding wall that cooperatively define a main track. The sliding carrier is slidable relative to the casing unit between a closed position and a first open position. The positioning pin of the pivot member is inserted into the main track and is slidable in the main track along a heart-shaped route during the sliding movement of the sliding carrier.

Abstract: A fastener driving tool includes a housing, a striking member, an energy storing unit and a handle unit. The energy storing unit has a torsion spring which has weighted and driving legs extending from two ends of a coil. The driving leg is biased against and engaged with the weighted leg to be preloaded with a downward potential energy that urges a downward movement of the torsion spring and the striking member. The handle unit includes a handle and an anchoring member removably engaged with the striking member. When the handle is pivotally moved from a ready position to a striking position, the weighted leg is moved downwardly and the anchoring member and the striking member are moved upwardly to gradually increase a loading of the torsion spring for the striking member.

Abstract: A fastener driving tool includes a striking member mounted in a housing for reciprocal movement relative to a fastener striking opening, a leaf spring engaging with the striking member at an end, and having a flexible section anchored by an anchoring unit, and a press handle pivotably connected with the anchoring unit, and having an elongated guide slot in which a pivot axle is movably engaged. The press handle is pivotable from a ready position, where the anchoring unit anchors the flexible section, through an intermediate position, where the anchoring unit is moved upwardly and rearwardly to cause resilient deflection of the leaf spring and load the leaf spring with an accumulated biasing energy, to a striking position, where the anchoring unit abuts against and is counteracted upon the pivot axle or a stop peg to be disengaged from the leaf spring so as to release the biasing energy.

Abstract: A fastener driving tool includes a striking member and an energy storing unit disposed in a housing. The energy storing unit has at least one torsion spring having forwardly extending short and long legs which are connected to a pivotable handle and the striking member. An anchoring member is disposed forwardly of and slidable relative to the handle and is detachably engaged with the striking member. During a pivotal movement of the handle, the short and long legs of the torsion spring are moved in opposite directions to store a biasing energy and to force the striking member upwards, which in turn moves the striking member downward for performing a fastener striking stroke once the anchoring member is disengaged from the striking member to release the torsion spring.

Abstract: A stapler includes an elongated channel body pivotably attached to a base, and an elongated magazine track coaxially disposed in and movable relative to a channel of the channel body in a front-and-rear direction between first and second positions. One of the channel body and the magazine track has a bottom wall on which a resilient damping member is disposed, while the other one thereof has a bottom wall which is formed with a frictionless segment, a friction-increasing segment and a stop segment. A friction end of the damping member is disposed at the frictionless segment in the first position, and is slidably moved on and frictionally engaged with the friction-increasing segment and stopped on the stop segment in the second position.

Abstract: A stapler includes a base, a handle pivotably connected to the base, and a magazine unit having a channel body which is pivotably attached to the base, a magazine body which is coaxially disposed to and movable relative to the channel body in a lengthwise direction, and a magazine ejection spring disposed to bias the magazine track to make an ejection movement. The magazine unit further has a damping module disposed on the magazine track and having two spring-biased damping members which are movable relative to the magazine track to be slidably moved on and frictionally engaged with inner wall surfaces of two outer lateral wails of the channel body so as to retard the ejection movement of the magazine track.

Abstract: A rotary trimmer device includes a rotary trimmer assembly slidably connected with a rail mounted on a base. The assembly includes a housing defining a lower inclined wall inclined relative to a working plane on which an object to be cut is placed, a blade holder coupled with and rotatable relative to the inclined wall and holding at least one cutting blade to shift the blade between cutting and non-cutting positions by rotation thereof, and a retaining unit disposed between the inclined wall and the blade holder.

Abstract: A staple gun includes a base seat having a pivot shaft and a coupling shaft, a striking member disposed movably in the base seat and having a connecting hole, an elastic member engaging the connecting hole, a driving member having a slot and a linking hole that is engaged with the elastic member, and a handle. The driving member is inclined with a lower portion thereof being disposed in front of an upper portion thereof. The handle has a cam surface, and an engaging hole retaining the pivot shaft. Pivot movement of the handle toward a pressed position deforms the elastic member resiliently and moves the handle rearwardly due to a slidable contact between the cam surface and the coupling shaft.

Abstract: An auxiliary binding jig is configured for assisting a plurality of binding members to bind a plurality of papers into a bound document, and includes an auxiliary plate body having opposite first and second planar surfaces, and a plurality of engaging holes extending through the first and second planar surfaces and each having a constriction which divides a respective engaging hole into two hole portions and which is formed by two press tabs defining therebetween a slot communicating with the hole portions. The press tabs are configured to press against an outer ring of each binding member when each binding member is inserted into a respective engaging hole through the slot so as to position each binding member on the auxiliary plate body.

Abstract: An adjusting mechanism is provided for selectively setting a restoring force acting on a backrest of a chair. In a biasing unit of the adjusting mechanism, a spring segment is disposed between a head end and a follower end to bias the follower end to the remote position. The follower end is angularly movable on a cam surface between distal and proximate positions. In response to movement of a backrest of the chair from a normal position to an inclined position to permit the follower end to be forced by the cam surface to move from the remote position to a close position, two different restoring forces can be set by adjusting the follower end between the distal and proximate positions.