公开(公告)号：EP0830241A1

公开(公告)日：1998-03-25

申请号：EP96917922.0

申请日：1996-06-03

申请人： SENCORP

发明人： BOOTHBY, Terry, A. ,  LUCAS, Delbert, E.

IPC分类号： B25C1

CPC分类号： B25C1/14

摘要： A tool for driving a nail or other fastener is actuated by a caseless propellant charge (62) formed of combustible material that is transported into a combustion chamber (44) on a strip (64). The propellant charge (62) is ignited by striking a sensitizer portion (90) of the charge at an oblique angle. The ignition member (66) intermixes the sensitizer material (90) with an oxidizer layer (88) of the surface of the propellant charge (62), resulting in combustion of the charge. When ignited, the propellant charge (62) is compressingly interposed between an orifice plate (74) and a movable portion (80) of the combustion chamber. The orifice plate (74) includes a pedestal (78) with an annular compression surface that separates the surface of the ignition area from the remaining surfaces of the charge (62); insuring that ignition gases are forced through the charge (62). An annular C-shaped ring (82) is interposed between the orifice plate (74) and the movable portion (80) of the combustion chamber (44). When the charge (62) is ignited, the resulting gas pressure resiliently expands the annular C-shaped ring (82) and urges opposite axial ends of the C-shaped ring (82) into sealing relationship between the relatively movable components of the combustion chamber. Combustion gases are communicated through orifices (76) in the orifice plate (74) to a cylinder (40) where the gases force movement of a driver (42), which driver strikes and drives a fastener such a nail. The driver (42) is reciprocally movable within the cylinder (40) and is returned to its precombustion position by a gas spring return cylinder (17). The gas return cylinder (17) is mechanically interconnected to the driver (42) and contains a sealed gaseous fluid that is independent of and segregated from fluids in the combustion chamber (44). An assembly (60) for deaccelerating the driver includes a series of spaced and aligned progressively sized metal cup members (110, 112, 114) of progressively increasing mass, contact surface area and interface angles.

公开(公告)号：EP0170424B1

公开(公告)日：1990-09-05

申请号：EP85304704.1

申请日：1985-07-02

申请人： SENCORP

发明人： Becht, Carl T.

IPC分类号： B25C5/16

CPC分类号： B25C5/1686

公开(公告)号：EP0169003B1

公开(公告)日：1990-04-04

申请号：EP85304705.8

申请日：1985-07-02

申请人： SENCORP

发明人： Becht, Carl T.

IPC分类号： B25C1/06 ,  B25C5/15

CPC分类号： B25C1/06 ,  B25C1/00

公开(公告)号：EP0613760B1

公开(公告)日：2000-12-13

申请号：EP94300758.3

申请日：1994-02-02

申请人： SENCORP

发明人： Crutcher, John P.

IPC分类号： B25C1/06 ,  F16D13/04

CPC分类号： B25C1/06

公开(公告)号：EP0662750B1

公开(公告)日：1999-08-11

申请号：EP95300048.6

申请日：1995-01-05

申请人： SENCORP

发明人： Hunter, Erick D.

IPC分类号： H02P5/418

CPC分类号： H02P25/145

公开(公告)号：EP0399659A3

公开(公告)日：1991-09-11

申请号：EP90304387.5

申请日：1990-04-24

申请人： SENCORP

发明人： Crutcher, John P. ,  Hueil, J. Charles ,  Juska, Donald D.

IPC分类号： B25C1/06 ,  B25C5/15

CPC分类号： B25C1/06

摘要： An electromechanical flywheel containing fastener driving tool (1). The tool comprises a frame supporting a housing (2), a guide body (3) and a fastener containing magazine (4). A free floating driver within said frame. Forward and rearward flywheels are arranged in tandem within the tool frame with their peripheral surfaces opposed. A pair of beam-like arcuate load springs are located to either side of the frame. The load spring rearward ends carry bearings in which the shaft of the rearward flywheel is journaled. The load spring forward ends carry rotatable eccentric bearing housings in which the shaft of the forward flywheel is journaled. The bearing housings are rotatable to shift the forward flywheel between operative and inoperative positions wherein the opposed surfaces of the flywheels are spaced by a distance less than and a distance greater than the thickness of the driver, respectively. The load springs permit the forward flywheel to yield slightly from its operative position when the driver is introduced between the flywheels. An electric motor (7) and gear train drive the flywheels in counterrotation regardless of the position of the forward flywheel. A driver return system comprises a stationary idler roller and a return roller and gear train constantly driven by the rearward flywheel and pivotable thereabout between operative and inoperative positions. The driver is shiftable between a retracted position and an extended position A driver trigger (10) released locking means maintains the driver in its normal position. A driver actuator introduces the released driver between the flywheels. The tool has a safety (92) which controls the driver trigger, the driver actuator and the positions of the forward flywheel and the return roller.

公开(公告)号：EP0169004B1

公开(公告)日：1989-11-15

申请号：EP85304706.6

申请日：1985-07-02

申请人： SENCORP

发明人： Becht, Carl T.

IPC分类号： B25C5/16

CPC分类号： B25C5/10 ,  B25C1/06 ,  B25C5/13

公开(公告)号：EP0169004A1

公开(公告)日：1986-01-22

申请号：EP85304706.6

申请日：1985-07-02

申请人： SENCORP

发明人： Becht, Carl T.

IPC分类号： B25C5/16

CPC分类号： B25C5/10 ,  B25C1/06 ,  B25C5/13

摘要： Means for associating a driver (8) with the driver operating mechanism (2) of a fastener driving tool (1), the driver (8) constituting a part of a fastener-containing magazine (5) manually attachably to and detachable from the tool. The fastener driving tool is of the type having a housing (3) containing a driving element constituting a part of an operating mechanism for driving a fastener by multiple blows, or a driving element constituting a part of an operating mechanism for driving a fastener by a single blow. In the instance of a multiple-blow tool, a resilient element (21), attached to the tool housing adjacent the driver operating mechanism and the driver operating mechanism itself, releasably positions the upper end of the magazine driver adjacent the driving element of the tool. In the instance of a single-blow tool, the magazine driver is releasably positioned adjacent the driving element of the tool by a resilient element attached directly to the driving element of the tool.

公开(公告)号：EP0830241B1

公开(公告)日：1999-03-10

申请号：EP96917922.5

申请日：1996-06-03

申请人： SENCORP

发明人： BOOTHBY, Terry, A. ,  LUCAS, Delbert, E.

IPC分类号： B25C1/14

CPC分类号： B25C1/14

摘要： A tool for driving a nail or other fastener is actuated by a caseless propellant charge (62) formed of combustible material that is transported into a combustion chamber (44) on a strip (64). The propellant charge (62) is ignited by striking a sensitizer portion (90) of the charge at an oblique angle. The ignition member (66) intermixes the sensitizer material (90) with an oxidizer layer (88) of the surface of the propellant charge (62), resulting in combustion of the charge. When ignited, the propellant charge (62) is compressingly interposed between an orifice plate (74) and a movable portion (80) of the combustion chamber. The orifice plate (74) includes a pedestal (78) with an annular compression surface that separates the surface of the ignition area from the remaining surfaces of the charge (62); insuring that ignition gases are forced through the charge (62). An annular C-shaped ring (82) is interposed between the orifice plate (74) and the movable portion (80) of the combustion chamber (44). When the charge (62) is ignited, the resulting gas pressure resiliently expands the annular C-shaped ring (82) and urges opposite axial ends of the C-shaped ring (82) into sealing relationship between the relatively movable components of the combustion chamber. Combustion gases are communicated through orifices (76) in the orifice plate (74) to a cylinder (40) where the gases force movement of a driver (42), which driver strikes and drives a fastener such a nail. The driver (42) is reciprocally movable within the cylinder (40) and is returned to its precombustion position by a gas spring return cylinder (17). The gas return cylinder (17) is mechanically interconnected to the driver (42) and contains a sealed gaseous fluid that is independent of and segregated from fluids in the combustion chamber (44). An assembly (60) for deaccelerating the driver includes a series of spaced and aligned progressively sized metal cup members (110, 112, 114) of progressively increasing mass, contact surface area and interface angles.

公开(公告)号：EP0830240B1

公开(公告)日：1999-03-10

申请号：EP96917020.8

申请日：1996-06-03

申请人： SENCORP

发明人： REMEROWSKI, David, L.

IPC分类号： B25C1/08

CPC分类号： B25C1/082

摘要： A tool for driving a nail or other fastener is actuated by a caseless propellant charge (62) formed of combustible material that is transported into a combustion chamber (44) on a strip (64). The propellant charge (62) is ignited by striking a sensitizer portion (90) of the charge at an oblique angle. The ignition member (66) intermixes the sensitizer material (90) with an oxidizer layer (88) of the surface of the propellant charge (62), resulting in combustion of the charge. When ignited, the propellant charge (62) is compressingly interposed between an orifice plate (74) and a movable portion (80) of the combustion chamber. The orifice plate (74) includes a pedestal (78) with an annular compression surface that separates the surface of the ignition area from the remaining surfaces of the charge (67), insuring that ignition gases are forced through the charge (62). An annular C-shaped ring (82) is interposed between the orifice plate (74) and the movable portion (80) of the combustion chamber (44). When the charge (62) is ignited, the resulting gas pressure resiliently expands the annular C-shaped ring (82) and urges opposite axial ends of the C-shaped ring (82) into sealing relationship between the relatively movable components of the combustion chamber. Combustion gases are communicated through orifices (76) in the orifice plate (74) to a cylinder (40) where the gases force movement of a driver (42), which driver strikes and drives a fastener such a nail. The driver (42) is reciprocally movable within the cylinder (40) and is returned to its precombustion position by a gas spring return cylinder (17). The gas return cylinder (17) is mechanically interconnected to the driver (42) and contains a sealed gaseous fluid that is independent of and segregated from fluids in the combustion chamber (44). An assembly (60) for deaccelerating the driver includes a series of spaced and aligned progressively sized metal cup members (110, 112, 114) of progressively increasing mass, contact surface area and interface angles.