公开(公告)号：US6151951A

公开(公告)日：2000-11-28

申请号：US261239

申请日：1999-03-03

Applicant: Toshirou Kawano

Inventor： Toshirou Kawano

IPC: B21D37/14 ,  B21D5/02 ,  B21D37/04

CPC classification number: B21D5/02 ,  B21D5/0236

Abstract: An upper tool holding apparatus includes: an upper tool support portion provided under a holder main body to support an upper tool; an upper tool clamp which is supported in a swingable way with a fulcrum near the approximately central portion in the vertical direction of the holder main body; a pressing member provided at a lower portion of the upper tool clamp to press the upper tool to the upper tool support portion; an engaging member provided at the lower portion of the upper tool clamp; and a clamping force giving means pressing the upper portion side of the upper tool clamp so that the upper tool clamp can clamp the upper tool with the upper tool support portion. In the construction, the engaging member is provided by being divided into a plurality of pieces as engaging split fragments. Furthermore, the respective divided engaging split fragments are respectively provided by being urged in the direction of the upper tool support portion.

Abstract translation: 上部工具保持装置包括：上部工具支撑部分，设置在保持器主体下方以支撑上部工具; 上部工具夹具，其在支架主体的垂直方向上以大致中心部分附近的支点以可摆动的方式支撑; 加压构件，设置在所述上​​部工具夹具的下部，以将所述上部工具按压到所述上部工具支撑部分; 设置在所述上​​部工具夹具的下部的接合构件; 以及夹紧力给予装置压紧上部工具夹具的上部侧，使得上部工具夹具可以用上部工具支撑部分夹紧上部工具。 在该结构中，接合构件通过被分成多个作为接合分裂碎片的部件而提供。 此外，各个分割的接合分割片分别通过沿着上部工具支撑部分的方向被推动而设置。

公开(公告)号：US06263721B1

公开(公告)日：2001-07-24

申请号：US09382797

申请日：1999-08-25

Applicant: Toshirou Kawano

Inventor： Toshirou Kawano

IPC: B21D502

CPC classification number: B21D5/0209 ,  B21D5/0236

Abstract: An upper tool holder apparatus in a press brake includes: a holder main body having an upper tool supporting section for supporting an upper tool a lower portion of the holder main body and further having a mounting; an upper tool clamp supported to the holder main body having an engagement projection at the bottom end of the upper tool clamp which is engaged with a drop-prevention groove provided in the upper tool; a pressing section provided on a lower portion of the upper tool clamp; clamping force applying means for applying a clamping force which clamps the upper tool by pressing an upper portion of the upper tool clamp; clamp operating means for transmitting the clamping force from the clamping force applying means to the upper tool clamp and for releasing the clamping force; and a wedge piece, which is engaged with the drop-prevention groove provided in the upper tool, provided on an upper portion of the engagement projection provided on the lower portion of the upper tool clamp, a force being applied to the wedge piece in a direction where it moves forwards and backwards and it is engaged with the drop-prevention groove. In the construction above, a groove is formed in a front-and-rear direction on a center portion of a right-and-left direction of a lower portion of the mounting plate; and a right-and-left pivoting prevention member which is engaged with the groove is provided on an upper portion of the upper tool clamp.

Abstract translation: 压制机中的上刀具装置包括：保持器主体，具有上刀具支撑部，用于将保持器主体的下部支撑上刀具，并具有安装件; 支撑在保持器主体上的上部工具夹具，该上部工具夹具在上部工具夹具的底端处具有与设置在上部工具中的防滴槽接合的接合突起; 设置在所述上​​部工具夹具的下部的按压部; 夹紧力施加装置，用于施加通过按压上部工具夹具的上部夹紧上部工具的夹紧力; 夹紧操作装置，用于将夹紧力从夹紧力施加装置传递到上部工具夹具并释放夹紧力; 以及楔形件，其与设置在上部工具中的防滴槽接合，设置在设置在上部工具夹具的下部上的接合突起的上部，施加到楔形件的力 其向前和向后移动的方向，并且与防滴槽接合。 在上述结构中，在安装板的下部的左右方向的中心部分上沿前后方向形成有槽， 并且在上部工具夹具的上部设置有与槽啮合的左右枢转防止构件。