Abstract: An air supply and exhaust system comprising a pneumatic tool, an air supply source, an exhaust apparatus, and at least one double-pipeline air hose. The exhaust apparatus includes a filter through which exhaust from the pneumatic tool passes and is provided apart from the pneumatic tool. The double-pipeline air hose includes two pipelines and connects the pneumatic tool and the air supply source, wherein one of the pipeline is for air supply to the pneumatic tool and the other of pipeline is for exhaust from the pneumatic tool.

Abstract: A fixing machine with a machine frame, a feeding tool attached to the machine frame, and a fixing tool also attached to the machine frame is provided. The fixing tool can be operated for fixing by fixing elements moved into a fixing position on a support. The feeding tool can be operated for transferring the fixing elements into the fixing position, and can be moved back and forth by a drive element which is rotatable about a drive axis stationary relative to the machine frame. The feeding tool has a feeding rocker which is pivotable about a pivot axis stationary relative to the machine frame. A coupling element is coupled in an articulated manner to the feeding rocker and fastened to the drive element through a rotary joint. The rotary joint is rotatable with the drive element about the drive axis and has a joint axis extending parallel offset relative to the drive axis.

Abstract: A driving-in tool for a furniture part which can be fitted in place by at least one rotating lever, is provided in which the driving-in tool possesses a centering part shaped in accordance with the fitting part to be connected and serving as an insertion guide, and a spring or spring-loaded holding part supporting the rotating lever in its open position.

Abstract: A method for adjusting percussion pressure and a drilling machine. In the method the percussion power of a drilling machine is adjusted by moving a shank in the longitudinal direction of the drilling machine forwards when a smaller percussion power is to be transferred from the percussion piston to the shank. The drilling machine comprises at least two groups of pistons moving in the axial direction of the drilling machine, the pistons being connected to act on the shank by means of a pressure medium acting behind the pistons towards the front end of the drilling machine. The drilling machine comprises at least two separate groups of pistons whose travel with respect to one another is different and where pressure medium channels separate from one another lead to the cylinder spaces of both piston groups.

Abstract: A stapler includes a barrel slidably received in a housing for engaging with a work piece, and a base having one end adjustably secured to the barrel and having a groove for slidably receiving fasteners. A casing is slidably engaged onto the base, a pusher is pivotally coupled to the casing, and a spring biases the pusher to the casing and biases the casing and the pusher toward the barrel for moving the fasteners into the barrel one by one. The casing and the pusher may be moved away from the barrel by a cam surface when the barrel is moved inward of the housing against a spring.

Abstract: A stud driver for driving fastener studs in place with the aid of a propelling piston moved by a propellant contains a return spring concentrically surrounding a piston rod of the propelling piston. The return spring has roughly the shape of a relatively thin-walled cylindrical sleeve of elastomeric material reinforced at regular intervals by metallic ring disks. These metallic ring disks prevent any uncontrolled deformation of the elastomeric sleeve in high-speed movement of the propelling piston.

Abstract: An improved fastener driving tool is provided that is especially adapted to the application of fasteners in trim applications, such as the fastening of wood trim and decorative pieces. The preferred embodiment is a combustion tool, and includes an incrementally adjustable fastener driving depth setting mechanism. The incremental control permits an operator to select from a number of discrete depth settings over a limited range. The preferred tool also includes a distance amplifying fastener lockout. The lockout amplifies a fastener follower movement permitting the blocking of movement of a linkage necessary to tool operation in response to the movement associated with an individual small fastener being dispensed. A trigger and handle of the preferred tool are proximate to the driver blade axis, and the trigger is disposed within an imaginary extension of a fuel canister held within the tool housing.

Abstract: A full-thickness resection system comprises a flexible endoscope and a stapling mechanism, wherein the endoscope is slidably received through at least a portion of the stapling mechanism. The stapling mechanism comprises an anvil and a stapling head mounted to the anvil so that the anvil and the stapling head are moveable with respect to one another between a tissue receiving position and a stapling position and wherein a gap formed between the stapling head and the anvil is larger in the tissue receiving position than it is in the stapling position. A position adjusting mechanism is provided for moving the anvil and the stapling head between the tissue receiving and stapling positions and a staple firing mechanism sequentially fires a plurality of staples from the stapling head across the gap against the anvil and through any tissue received in the gap and a knife cuts a portion of tissue received within the gap.

Abstract: A power-driven hammer drill 1 includes a rotary lever 8 for transmitting and disabling the transmission of the rotation of a motor 5 to a tool bit 4 and a slide lever 9 for transmitting and disabling the transmission of hammer blows to the tool bit 4. The rotary lever 8 is formed with a chamfer 52, whereas the slide lever 9 is formed with a straight portion 54 and a cut-out 53 which conforms to the circular edge of the rotary lever 8. When the slide lever 9 is in the lowermost position with the rotary lever 8 fitted in the cut-out 53, the rotary lever 8 is in the position to disconnect the rotation of the motor 5 to the tool bit 4, and while in this position, the slide lever 9 cannot be slid to its uppermost position, in which hammer blows cannot be transmitted to the tool bit 4.

Abstract: A power tool system includes a tool body in which an activation switch (12) controls a motor (20). A plurality of interchangeable tool heads (50) are able to be accepted by the power tool in order to provide a dedicated tool. A releaseable lock-off mechanism (90) is incorporated in the tool body which restrains actuation of the activation switch (12) when none of the tool heads (50) is present.

Abstract: An improved fastener driving tool is provided that is especially adapted to the application of fasteners in trim applications, such as the fastening of wood trim and decorative pieces. The preferred embodiment is a combustion tool, and includes an incrementally adjustable fastener driving depth setting mechanism. The incremental control permits an operator to select from a number of discrete depth settings over a limited range. The preferred tool also includes a distance amplifying fastener lockout. The lockout amplifies a fastener follower movement permitting the blocking of movement of a linkage necessary to tool operation in response to the movement associated with an individual small fastener being dispensed. A trigger and handle of the preferred tool are proximate to the driver blade axis, and the trigger is disposed within an imaginary extension of a fuel canister held within the tool housing.

Abstract: A power tool comprises a body (14) having a motor (22) with an output. A detachable tool head (50) is engageable with the motor output wherein the motor output has a first engagement member (32) for complimentary engagement with a second engagement member (62) on the tool head drive. The first engagement member (32) is recessed within the body (14) and accessible through an aperture (44) therein. And the second engagement member (62) is recessed within the tool head (52) and accessible through a second aperture therewithin.

Abstract: A combustion powered tool for driving fasteners having a housing to house a main chamber. Within the main chamber is a power source having a combustion end and a lower end enclosed in the main chamber. A rod is driven by the combustion end of the power source. A device is provided for feeding fasteners sequentially for engagement with the rod. A nosepiece has a tool end, a workpiece end opposite the tool end, and depends from the lower end of the power source. The nosepiece is configured for receiving the rod from the lower end of the power source and for guiding the rod toward a workpiece. A workpiece-contacting element is slidably mounted on the nosepiece. Also provided is a protective shield for protecting the nosepiece and the workpiece-contacting element. The shield is constructed and arranged to define a cavity between the nosepiece and the shield, and is tapered from an upper end to a lower end.

Abstract: A motor driven stapler has a holding mechanism for holding parts of the legs of a staple penetrated and projecting from a pile of sheets. The parts of the legs of the staple penetrated and projecting from the pile are clinched by a clinching plate after holding the same by the holding mechanism.

Abstract: The present invention provides an apparatus capable of selectively stapling one of opposite corners of the sheets, as well as a side of the sheets.

Abstract: An impact mechanism, such as an impact wrench is provided and includes a motor, a shaft rotatable about an axis and coupled to the motor and having a first shaft groove with first and second axial ends and a hammer disposed about the shaft and having a first hammer groove. A ball is disposed in the first hammer groove and in the first shaft groove and couples the hammer to the shaft for relative axial and rotatable movement, with the ball moveable along the grooves. The wrench also includes a rotatable anvil for coupling to a load, a bias member resiliently biasing the hammer axially into engagement with the anvil and stop structure disposed along the shaft for engagement with the hammer to limit axial movement of the hammer away from the anvil so as to prevent the ball from contacting the second axial end of the first shaft groove.

Abstract: A replaceable, flexible and resilient grip is slidably fitted over a generally cylindrical handle portion of a power hand tool housing. In one embodiment, for use with a pistol grip housing with a separable end cap, the grip has a flange which is clamped between the end cap and the barrel of the housing and has lugs which fit in recesses in the barrel and end cap. The grip also has a strap portion which fits between the trigger and the barrel and a flange which fits in a groove adjacent to the barrel. In another embodiment, the tool has an air exhaust port adjacent to the handle portion and the grip defines an exhaust air passage alongside the handle portion, the grip being held in place by a retaining plate.

Abstract: A torque impulse tool for screw joint tightening includes a housing, a pneumatic motor with a rotor, an output shaft, a hydraulic impulse generator coupling the rotor to the output shaft, and an automatic power shut-off device including a pressure air inlet valve communicating with the pneumatic motor and shiftable between a fully open condition, a partially open condition and a closed condition. In addition, an activation mechanism is provided which is co-rotative with the rotor and which includes a connection member engaging the inlet valve for shifting the inlet valve between the fully open condition, the partially open condition and the closed condition.

Abstract: An improved surgical stapling apparatus containing a locking mechanism to prevent reactuation of the apparatus, the locking mechanism comprising a resilient clip having a hook which is engagable with a locking notch on the cam bar retainer. The resilient clip is initially held in a non-engagable position by means of a movable chock. When the stapler is actuated for the first time, the cam bar retainer pushes the chock into a subsequent position where the chock no longer blocks the resilient clip. The resilient clip then moves to a position where the hook is engagable with the locking notch. Once the cam bar retainer is retracted it can no longer be reactuated.

Abstract: A percussive hammer for delivering impacts driven by oil which is quickly applied under pressure derived from a system supply and from a source of compressed gas.