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20 条记录 (耗时 0.01 秒)

    Air tool with double acting valve
    2.
    发明公开
    Air tool with double acting valve 失效
    双作用气动工具

    公开(公告)号：EP0209373A3

    公开(公告)日：1989-08-16

    申请号：EP86305468.0

    申请日：1986-07-16

    申请人： John Macdonald & Company (Pneumatic Tools) Limited ,  Allan, David Thomson

    发明人： Allan, David Thomson

    IPC分类号： B25D9/16

    CPC分类号： B25D9/16

    摘要： An air tool comprises a casing (1) having an internal bore (1a) and a piston (2) slidably mounted for reciprocal movement therein. The piston (2) is driven in the bore (1 a) by a fluid supply (5) controlled by valve means (3). The valve means (3) is movable between a first position in which a drive portion (2b) of the piston (2) is in communication with the fluid supply (5) and is closed to the fluid exhaust means (141, and a second position, in which the drive portion (2b) of the piston (2) is closed to the fluid supply (5) and in communication with the fluid exhaust means (14).

    摘要翻译： 一种气动工具包括具有内孔（1a）的壳体（1）和可滑动地安装以便在其中往复运动的活塞（2）。 活塞（2）通过由阀装置（3）控制的流体供应（5）在孔（1a）中被驱动。 阀装置（3）可在其中活塞（2）的驱动部分（2b）与流体供应（5）连通并且与流体排放装置（14）关闭的第一位置和第二位置之间移动， 第二位置，其中活塞（2）的驱动部分（2b）关闭到流体供应源（5）并与流体排出装置（14）连通。

    Tool assembly
    6.
    发明公开
    Tool assembly 失效
    工具组装

    公开(公告)号：EP0074171A1

    公开(公告)日：1983-03-16

    申请号：EP82303980.5

    申请日：1982-07-28

    申请人： John Macdonald & Company (Pneumatic Tools) Limited ,  Allan, David Thomson

    发明人： Allan, David Thomson

    IPC分类号： B28D1/26 ,  B25D17/02

    CPC分类号： E21B17/046 ,  B25D17/02 ,  B25D17/08 ,  B28D1/265 ,  Y10T83/9473 ,  Y10T279/17761 ,  Y10T279/17786 ,  Y10T403/61 ,  Y10T403/7094

    摘要： A tool assembly comprises a piston (1), a sleeve (2) around the piston (1), the piston (1) and sleeve (2) being correspondingly apertured (4,5) to receive a locking pin (not shown), and a tool holder (6) abutting an end face of the piston (1) and an opposing face of the sleeve (1) so as to be a tight fit between said faces.
    The tool holder (6) forms a relatively small volume of metal thereby facilitating brazing of the tool bits (12) and inexpensive replacement.

    摘要翻译： 工具组件包括活塞（1），围绕活塞（1）的套筒（2），活塞（1）和套筒（2）相应地有孔（4,5）以接收锁定销（未示出） 以及邻接所述活塞（1）的端面和所述套筒（1）的相对面以紧密配合在所述面之间的工具架（6）。 工具架（6）形成相对较小体积的金属，从而便于钎焊工具头（12）并且廉价地更换。

    Improvements in or relating to pneumatic tools
    7.
    发明公开
    Improvements in or relating to pneumatic tools 失效
    Verbesserungen an pneumatischen Werkzeugen。

    公开(公告)号：EP0440399A1

    公开(公告)日：1991-08-07

    申请号：EP91300632.6

    申请日：1991-01-28

    申请人： John Macdonald & Company (Pneumatic Tools) Limited ,  Allan, David Thomson

    发明人： Allan, David Thomson

    IPC分类号： B25D17/11 ,  B25D17/24

    CPC分类号： B25D17/24 ,  B25D17/11

    摘要： A pneumatic reciprocating tool comprises a cylinder body (12) and an air-operated piston (110) which reciprocates within said cylinder body during sustained use of said tool, air being exhausted from an exhaust port (24) in said cylinder body during such use. The pneumatic tool includes a silencer arrangement (126) substantially totally surrounding said cylinder body and formed of a length of metallic structural hollow section. Mounting means (128), (130) for mounting said silencer arrangement on said pneumatic tool are also provided and optionally include a vibration reducing arrangement.

    摘要翻译： 气动往复工具包括在所述工具的持续使用期间在所述缸体内往复运动的气缸体（12）和气动活塞（110），在这种使用期间，空气从所述缸体中的排气口（24）排出 。 气动工具包括基本上完全围绕所述缸体并由一定长度的金属结构中空部分形成的消声器装置（126）。 还提供了用于将消声器装置安装在所述气动工具上的安装装置（128），（130），并且可选地包括减振装置。

    Scabbler bits
    8.
    发明公开
    Scabbler bits 失效
    Hammerwerkzeug。

    公开(公告)号：EP0375453A1

    公开(公告)日：1990-06-27

    申请号：EP89313495.7

    申请日：1989-12-21

    申请人： John Macdonald & Company (Pneumatic Tools) Limited ,  Allan, David Thomson

    发明人： Allan, David Thomson

    IPC分类号： B28D1/26 ,  B25D17/02

    CPC分类号： B25D17/02 ,  B28D1/265

    摘要： A scabbler bit comprises a carrier having a body 30 with a lower face 31 formed to provide bores 32 for receipt of scabbler tips 44. The body 30 has a central bore 33 for passage of a fixing shank 34. The bore 33 is enlarged at the lower face 31 to form a recess 35 to receive the head 36 of the shank 34. The opposite face of the body 30 is formed with a counterbore 37 to receive the piston 38, the shank 34 being retained in the piston by a pin 39. Thus, axial loads on the scabbler bit are transmitted to the piston 38 via shoulder 40 of the carrier bearing on end face 41 of the piston 38, while any sideways of twisting load is resisted by the wall of the counterbore 37 bearing on the side face 42 of the piston 38.

    摘要翻译： 刮板钻头包括具有本体30的载体，该主体30具有下表面31，下表面31形成为提供用于接收刮板末梢44的孔32.主体30具有用于通过固定柄34的中心孔33.孔33在 下表面31以形成凹部35以容纳柄部34的头部36.主体30的相对面形成有用于容纳活塞38的沉孔37，柄34通过销39保持在活塞中。 因此，止动钻头上的轴向载荷经由活塞38的端面41上的承载轴承的肩部40传递到活塞38，而任何侧向的扭转载荷都被抵靠在侧面上的沉孔37的壁抵抗 42的活塞38。