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1. 发明专利

DE3712845C2 未知
公开(公告)号：DE3712845C2
公开(公告)日：1994-01-27
申请号：DE3712845
申请日：1987-04-15
申请人： BRUDERER AG FRASNACHT ARBON
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/00 , B30B1/26 , B30B15/00 , B30B15/14
摘要： A first eccenter sleeve allocated to the drive of the devices operative for the balancing of masses is drivingly connected to the eccenter shaft by means of a displaceable locking bolt. The first eccenter sleeve is provided with pins and slide rings engaging into slots in the second eccenter sleeves. The second eccenter sleeves are connected via punch connecting rods to the ram of the machine. Slides are supported in the machine frame, which slides can be moved into slots provided in the second eccenter sleeves. Accordingly, all three eccenter sleeves can be held against rotation on the eccenter shaft. The drive connection between eccenter shaft and all eccenter sleeves proceeds accordingly via one single connecting member, namely the locking bolt. And this locking bolt operates together with one eccenter sleeve. Accordingly, no splined shafts which must be machined extremely precisely but are prone to knock out during operation are necessary.

2. 发明专利

GB2189730B A BALANCING MEANS IN A PUNCHING MACHINE 未知
公开(公告)号：GB2189730B
公开(公告)日：1989-11-29
申请号：GB8709410
申请日：1987-04-21
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/20 , B30B15/00 , B30B15/14
摘要： In a punching machine, a yoke is supported on an eccentric section of the crankshaft. The yoke is designed to counterbalance the rotating forces. Both ends of the yoke are pivotably connected to connecting rods. Both connecting rods are pivotably connected, in turn, to a vertically-guided counterbalancing weight to counterbalance the oscillating forces.

3. 发明专利

CH672173A5 未知
公开(公告)号：CH672173A5
公开(公告)日：1989-10-31
申请号：CH172686
申请日：1986-04-28
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/00 , B30B1/26 , B30B15/00 , B30B15/14

4. 发明专利

CH671077A5 未知
公开(公告)号：CH671077A5
公开(公告)日：1989-07-31
申请号：CH172786
申请日：1986-04-28
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/20 , B30B15/00 , B30B15/14

5. 发明专利

FR2597785A1 未知
公开(公告)号：FR2597785A1
公开(公告)日：1987-10-30
申请号：FR8703726
申请日：1987-03-18
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/20 , B30B15/00 , B30B15/14 , B30B1/26 , B21D28/00
摘要： In a punching machine, a yoke is supported on an eccentric section of the crankshaft. The yoke is designed to counterbalance the rotating forces. Both ends of the yoke are pivotably connected to connecting rods. Both connecting rods are pivotably connected, in turn, to a vertically-guided counterbalancing weight to counterbalance the oscillating forces.

6. 发明专利

GB2189297A Friction clutch for punching-machine 未知
公开(公告)号：GB2189297A
公开(公告)日：1987-10-21
申请号：GB8706838
申请日：1987-03-23
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： F16D25/0638 , F16D13/71 , F16D25/0635 , F16D13/70 , F16D25/063
摘要： In a friction clutch for a punching-machine, a driven flywheel (1), Fig. 1, is supported rotatably on a main shaft (3) and a clutch disc (4) is mounted for rotation with the main shaft (3), frictional engagement between clutch disc (4) and flywheel (1) proceeding as a result of axial motion of a pressing plate (9) against the clutch disc (4). This motion is produced by pressurised fluid acting upon pistons (12). The pressing plate (9) is connected to the flywheel (1) by means of generally tangential leaf springs (19), Fig. 4, which are each secured to a pressing plate lug (17) at the centre of the spring and to flywheel (1) at the spring ends, to allow axial shifting of the pressing plate (9). The springs (19) hold the pressing plate (9) centered within the flywheel (1).

7. 发明专利

IT1219598B 未知
公开(公告)号：IT1219598B
公开(公告)日：1990-05-18
申请号：IT4798988
申请日：1988-05-19
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/00 , B30B15/04 , B30B15/06 , B26D
摘要： The guide columns of the punch press are releasably mounted to the base plate. Guide sleeves project from the ram and the guide columns are guided inside of the these guide sleeves. The sealing between the guide columns and the guide sleeves is made by piston rings. Leakage oil is collected at the oil collecting ring and discharged through a transfer channel (11) located in the ram (2) towards an inner space of the guide sleeve. A horizontally mounted check valve is located in this oil transfer channel. The guide column includes a leakage oil channel which extends to the oil collecting space in the base plate. In operation oil present in the oil collecting ring is pumped into the oil collecting space due to the continously changing of the volume of the inner chamber such that no leakage oil can enter the punching work space. The check valve opens during the upwards movement of the ram and closes during the downwards movement thereof. Those sections of the guide columns which incorporate a sealing and guide function are surrounded by the respective guide sleeve at all operational positions of the ram and are accordingly protected against injury. By means of the above design a penetrating of lubricating oil into the punching works space is impossible and no large loss of lubricating oil is possible.

8. 发明专利

FR2597785B1 未知
公开(公告)号：FR2597785B1
公开(公告)日：1990-03-30
申请号：FR8703726
申请日：1987-03-18
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/20 , B30B15/00 , B30B15/14 , B30B1/26 , B21D28/00
摘要： In a punching machine, a yoke is supported on an eccentric section of the crankshaft. The yoke is designed to counterbalance the rotating forces. Both ends of the yoke are pivotably connected to connecting rods. Both connecting rods are pivotably connected, in turn, to a vertically-guided counterbalancing weight to counterbalance the oscillating forces.

9. 发明专利

IT1205989B 未知
公开(公告)号：IT1205989B
公开(公告)日：1989-04-05
申请号：IT4778087
申请日：1987-03-27
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B30B15/06 , B21D28/20 , B30B15/00 , B30B15/14 , B30B
摘要： In a punching machine, a yoke is supported on an eccentric section of the crankshaft. The yoke is designed to counterbalance the rotating forces. Both ends of the yoke are pivotably connected to connecting rods. Both connecting rods are pivotably connected, in turn, to a vertically-guided counterbalancing weight to counterbalance the oscillating forces.

10. 发明专利

DE2534629A1 未知
公开(公告)号：DE2534629A1
公开(公告)日：1976-03-11
申请号：DE2534629
申请日：1975-08-02
申请人： BRUDERER AG
发明人： PORTMANN AUGUST THOMAS
IPC分类号： B21D28/24 , B21D28/00 , B30B1/26 , B30B15/04 , F16C29/00 , B26D1/40
摘要： An apparatus for guiding a ram in the machine frame of a punch press or stamping machine or the like comprising four guides at least approximately arranged in the corners of a rectangle, each guide comprising a guide column. Each guide column possesses two guide surfaces arranged in the plane of travel of the workpiece, such as a strip of stock, to be punched. The two guide surfaces are situated opposite to one another with respect to a diagonal direction of the rectangle defined by the guides and cooperate with guide bodies arranged at the ram or the machine frame.

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