公开(公告)号：US5685191A

公开(公告)日：1997-11-11

申请号：US431285

申请日：1995-04-28

申请人： Susumu Kawano ,  Mamoru Sugimoto ,  Toshiro Kawano

发明人： Susumu Kawano ,  Mamoru Sugimoto ,  Toshiro Kawano

IPC分类号： B21D5/02 ,  B21D37/04

CPC分类号： B21D5/0236 ,  B21D5/0209

摘要： In an upper tool for a press brake formed with an inclined surface (9S) narrowed upwardly at an upper portion thereof and an engage groove (9G) formed under the inclined surface (9S). The inclined surface (9S) is brought into contact with an inclined surface of an upper tool clamp member (11), when the upper tool is clamped between an upper tool holder body (5) and an upper tool clamp member (11), in such a way that clamping force can be further increased when the upper tool is engaged with a die (63). Further, in an upper tool holder apparatus for a press brake, the pivotal upper tool clamp member (211) is formed with an engage projection (211P) for engaging a drop prevention groove (205G) formed in the upper tool (205). The upper tool holder apparatus further comprises a clamp operation lever (215) which can be selectively moved to a clamp position "A" at which the clamping force can be applied to the upper tool clamp member (211) from a clamping force generating spring (213) to clamp the upper tool tightly; an unclamp position "B" at which the clamping force can be reduced to allow the upper tool to be adjustably shifted horizontally, and an exchange position "C" at which the upper tool clamp member (211) can be moved way from the upper tool to allow the upper tool to be exchanged vertically with another one.

摘要翻译： 在用于形成有在其上部向上变窄的倾斜表面（9S）的压制机的上部工具和形成在倾斜表面（9S）下方的接合槽（9G）中。 当上部工具夹持在上部工具夹具本体（5）和上部工具夹紧构件（11）之间时，倾斜表面（9S）与上部工具夹紧构件（11）的倾斜表面接触， 这样一种方式，当上部工具与模具（63）接合时，能够进一步增加夹紧力。 此外，在用于压力制动器的上部工具保持装置中，枢轴式上部工具夹紧构件211形成有用于接合形成在上部工具（205）中的防滴槽（205G）的接合突起（211P）。 上刀架装置还包括夹紧操作杆（215），其可以选择性地移动到夹紧位置“A”，在夹紧位置“A”处，夹紧力可以由夹紧力产生弹簧施加到上工具夹紧构件（211） 213）紧紧夹紧上部工具; 可以减小夹紧力以允许上部工具可水平地移动的松开位置“B”，以及上部工具夹紧构件（211）能够从上部工具移动的更换位置“C” 以允许上部工具与另一个垂直地交换。

公开(公告)号：US5619885A

公开(公告)日：1997-04-15

申请号：US430492

申请日：1995-04-28

申请人： Susumu Kawano ,  Mamoru Sugimoto ,  Toshiro Kawano

发明人： Susumu Kawano ,  Mamoru Sugimoto ,  Toshiro Kawano

IPC分类号： B21D5/02 ,  B21D37/04

CPC分类号： B21D5/0209 ,  B21D5/0236

摘要： In an upper tool for a press brake clamped between a support plate (7) of an upper tool holder body (5) attached to a lower portion of an upper table (3) and an upper tool clamp member (11), the upper tool (9) is formed with an inclined surface (9S) narrowed upward at an upper portion thereof and with an engage groove (9G) engaged with an engage projection (11K) of the upper tool clamp member (11) and formed under the inclined surface (9S). Therefore, the inclined surface (9S) is brought into contact with an inclined surface of the upper tool clamp member (11), when the upper tool is clamped between the upper tool holder body (5) and the upper tool clamp member (11), in such a way that clamping force can be-further increased when the upper tool is engaged with a die (63). Further, in an upper tool holder apparatus for a press brake, the pivotal upper tool clamp member (211) is formed with an engage projection (211P) engaged with a drop prevention groove (205G) formed in the upper tool (205), and the upper tool holder apparatus further comprises clamp operation lever (215) for selectively moved to a clamp position A at which the clamping force can be applied to the upper tool clamp member (211) from the clamping force generating spring (213) to clamp the upper tool tightly; an unclamp position B at which the clamping force can be reduced to allow the upper tool to be adjustably shifted horizontally, and an exchange position C at which the upper tool clamp member (211) can be moved way from the upper tool to allow the upper tool to be exchanged vertically with another one.

摘要翻译： 在夹紧在安装在上台（3）的下部的上工具夹体（5）的支撑板（7）和上工具夹紧构件（11）之间的用于压制机的上工具中，上工具 （9）形成有在其上部向上变窄的倾斜表面（9S）和与上部工具夹紧构件（11）的接合突起（11K）接合并且形成在倾斜表面下方的接合槽（9G） （9S）。 因此，当上部工具夹紧在上部工具夹具本体（5）和上部工具夹紧部件（11）之间时，倾斜面（9S）与上部工具夹紧部件（11）的倾斜面接触， ，使得当上部工具与模具（63）接合时，可以进一步增加夹紧力。 此外，在上压式制动器的上刀具装置中，枢转式上刀夹具（211）形成有与形成在上刀具（205）中的防滴槽（205G）卡合的卡合突起（211P）， 上部工具夹具装置还包括用于选择性地移动到夹紧位置A的夹紧操作杆（215），夹紧力可以从夹紧力产生弹簧（213）施加到上部工具夹紧构件（211），以夹紧 上部工具紧紧; 可以减小夹紧力以允许上部工具可水平地移动的释放位置B，以及上部工具夹紧构件（211）能够从上部工具移动以允许上部工具 与另一个垂直交换的工具。

公开(公告)号：US07069766B2

公开(公告)日：2006-07-04

申请号：US10467171

申请日：2002-02-13

申请人： Shiro Hayashi ,  Yuki Takahashi ,  Toshiro Kawano

发明人： Shiro Hayashi ,  Yuki Takahashi ,  Toshiro Kawano

IPC分类号： B21D37/00

CPC分类号： B21D5/0236 ,  B21D5/0209

摘要： An upper die holder apparatus having a holder body has an upper die clamp supported to the holder body with a supporting point supporting the upper die clamp in a vicinity of a center in a vertical direction of the holder body. A clamping force applier is provided to the holder body for pressing an upper portion of the upper die clamp so that the upper die clamp clamps the upper die. A pressure receiver is provided to an upper portion of the upper die clamp. The pressure receiver, having a pressure sensing surface, is provided so that its advancing and retreating are adjusted to a pressing direction by the clamping force applier and the pressure receiver is provided so that an opening amount of the upper die clamp at the time of unclamping is freely selected between a plurality of stages.

摘要翻译： 具有保持器本体的上模保持器装置具有支撑在保持器本体上的上模夹具，支撑点在支架主体的垂直方向上靠近中心附近支撑上模夹。 夹持力施加器被提供到保持器主体，用于按压上模夹的上部，使得上模夹紧件夹住上模。 压力接收器设置在上模夹的上部。 具有压力感测面的压力接收器被设置成使得其前进和后退通过夹紧力施加器被调节到按压方向，并且设置压力接收器，使得在松开时上模夹具的开口量 在多个阶段之间自由选择。