Abstract:
A combustion nailer includes a tool housing, and a combustion engine substantially located within the housing and including a valve sleeve reciprocating relative to a cylinder head for cyclically opening and closing a combustion chamber. A control system is associated with the housing and is connected to the combustion engine for providing for a designated open time for the combustion chamber after a combustion event and before a subsequent combustion can occur.
Abstract:
A hammering piston (7) is so provided in a hammering cylinder (6) disposed in a body (1) as to be capable of vertically sliding. A movable sleeve (11) is vertically movably fitted to the upper outer side of the hammering cylinder (6). An airtight combustion chamber (5) is formed by upwardly moving the movable sleeve (11) until it is brought into contact with a cylinder head (10) positioned above the movable sleeve. A combustible mixed gas is explosively burned in the combustion chamber (5) and the high-pressure combustion gas is applied to the hammering piston (7) to impulsively drive the piston, whereby a fastener is hammered out by a driver (8) joined to the lower surface of the hammering piston (7). An elastic member (15) is disposed between the movable sleeve (11) and the cylinder head (10). The elastic member (15) biases the movable sleeve (11) downward.
Abstract:
A combustion nailer (10) configured for selectively operating in one of a sequential and a repetitive mode includes a combustion engine (14) at least in part defining a combustion chamber (18), a fan motor (49) associated with the combustion chamber and a control system (66) for controlling operation of the nailer, the control system being configured for powering the fan motor at a first speed when the nailer is operating in the sequential mode, and a second speed when the nailer is operating in the repetitive mode .
Abstract:
The device comprises a combustion chamber, a device (30) for transmitting gas from the cartridge (20) into said chamber comprising a valve (39) controlled by a solenoid (38) . The device comprises a means (38) of reading an electronic label (50) on the cartridge for identifying the cartridge (20) , with an antenna for emitting data from the label (50) , where the means of reading comprise a receiving antenna for the data. The receiving antenna of the reading means is formed by said solenoid (38) .
Abstract:
A combustion nailer (10) includes a combustion-powered power source (14) at least one fan (48) associated with the power source, at least one temperature sensor (60, 60’) in operational proximity to the power source for sensing power source temperature, and a control system (62) operationally associated with the power source and the at least one temperature sensor for disabling the power source by disabling at least one main tool function upon the sensing of a predetermined temperature threshold sensed by the at least one temperature sensor.
Abstract:
A suspension system for a motor of a combustion-powered hand tool includes a motor retaining ring defining a space for accepting the motor, an outer ring radially spaced from the retaining ring and configured for attachment to a cylinder head of a combustion chamber, and at least one resilient suspension element configured for dampening vibrations between a motor support and a tool frame, and having a plurality of resilient beams connecting the retaining ring and the outer ring.
Abstract:
A fastener driving tool comprising: a tool nose through which a fastener is fired; loading means for introducing the fastener into the tool nose. The fastener is adapted to be propelled by a gas combustion mechanism comprising a first priming cylinder (A) having a first piston (24) and an air intake (31) fluidally connected via a first valve means (32) to a second delivery cylinder (B) having a second piston (51). The first priming cylinder fluidally connected to a fuel gas reservoir (3) via a second valve means (26), the first priming cylinder adapted to receive fuel from the reservoir and air through the air intake thereby forming an air/fuel gas mixture therein. The first piston adapted to compress the air/fuel gas mixture and transfer same to the second deliver cylinder via said first valve means, the air/fuel mixture ignited therein and thereby urging the second piston towards the fastener and propelling same away from the tool nose.
Abstract:
The housing is intended to receive a source (20) introduced by means of its head and pushed into a position ensuring good transmission of energy. The housing includes a mechanism (60, 61, 62) for converting a transverse movement towards the interior of the housing imparted by a pusher element (61 ) of the mechanism accessible from the exterior of the housing into an orthogonal movement for ejection of the source (20).
Abstract:
A cage and upper probe assembly for use in a fastener-driving tool includes a cage (46) including a base (48) and a plurality of generally normally extending arms (50) configured for attachment to a valve sleeve (22) , a probe (42) configured for direct attachment to the cage and having at least one lobe formation (58) for receiving a pusher rod (38), and the probe being attached to the cage so that impact of the pusher rod upon the probe is directly transmitted to the cage.
Abstract:
A fastener driving tool for driving fasteners toward a work surface comprises a body having a forward end, a rear end, and a cylinder with an axis, a piston mounted within the cylinder, a power source for driving the piston axially forwardly, a driver blade extending axially forwardly from the piston, a nosepiece extending axially forwardly from the front end of the tool body, wherein the nosepiece encloses a drive bore for guiding the fasteners and the driver blade toward the work surface, there being an opening into the drive bore for the fasteners, a magazine for guiding the fasteners to the opening. In one aspect, the magazine and the nosepiece are fixed with respect to each other, and the tool includes a fastener guide that extends axially forwardly from the nosepiece and moves with respect to the nosepiece between an extended position and a retracted position. In another aspect, the opening into the drive bore provides a small clearance through which the tips can pass, wherein the opening is long enough to accommodate fasteners of at least two different lengths.