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1.发明公开
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
发明人： Allan, David Thomson
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。
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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
发明人： Allan, David Thomson
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。
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公开(公告)号：EP0074234A3
公开(公告)日：1983-10-26
申请号：EP82304559
申请日：1982-08-31
发明人： Allan, David Thomson
CPC分类号： E01C23/0855 , B28D1/265 , E01C2301/50
摘要： O There is described apparatus for scabbling concrete in which the cylinder block which has a plurality of scabbling bit-carrying pistons mounted for reciprocal movement within a frame such that it is free to move within the frame in the direction of reciprocation of the piston.
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公开(公告)号：EP0209373A2
公开(公告)日：1987-01-21
申请号：EP86305468.0
申请日：1986-07-16
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。
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公开(公告)号：EP0068829A3
公开(公告)日：1984-08-22
申请号：EP82303305
申请日：1982-06-24
发明人： Allan, David Thomson
IPC分类号： B28D01/26
CPC分类号： B28D1/265
摘要： There is provided an improved scabbier bit wherein the bit is fixable to a piston of a scabbling machine through a male shank portion. The shank portion carries a circumferential groove for cooperation in the side wall of the piston to hold the shank firmly within the piston. There is also provided a scabbier bit wherein the shank portion is separate from the carrier. A novel design of a scabbier tip is also disclosed together with a novel arrangement of tips on the base of a tip carrier.
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公开(公告)号：EP0068829A2
公开(公告)日：1983-01-05
申请号：EP82303305.5
申请日：1982-06-24
发明人： Allan, David Thomson
IPC分类号： B28D1/26
CPC分类号： B28D1/265
摘要： There is provided an improved scabbier bit wherein the bit is fixable to a piston of a scabbling machine through a male shank portion. The shank portion carries a circumferential groove for cooperation in the side wall of the piston to hold the shank firmly within the piston. There is also provided a scabbier bit wherein the shank portion is separate from the carrier. A novel design of a scabbier tip is also disclosed together with a novel arrangement of tips on the base of a tip carrier.
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公开(公告)号：EP0074171B1
公开(公告)日：1985-12-27
申请号：EP82303980.5
申请日：1982-07-28
发明人： Allan, David Thomson
CPC分类号： E21B17/046 , B25D17/02 , B25D17/08 , B28D1/265 , Y10T83/9473 , Y10T279/17761 , Y10T279/17786 , Y10T403/61 , Y10T403/7094
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公开(公告)号：EP0059071A1
公开(公告)日：1982-09-01
申请号：EP82300822.2
申请日：1982-02-17
发明人： Allan, David Thomson
摘要： There is described a paving breaker (1) comprising a handle (10), a cylinder (20) and a front end (30) wherein the handle is attached to one end of the cylinder by means of spring pins (21) and wherein the other end of the cylinder is attached to the front end also by spring pins (32). A novel design of cylinder is also disclosed wherein the cylinder is formed of a rolled steel tube. There is described also a muffler for use with paving breakers, the muffler being formed by two identical parts.
摘要翻译： 描述了一种包括手柄（10），气缸（20）和前端（30）的铺路破碎机（1），其中手柄借助于弹簧销（21）附接到气缸的一端，并且其中 气缸的另一端也由弹簧销（32）连接到前端。 还公开了一种新颖的气缸设计，其中气缸由轧制钢管形成。 还描述了一种用于铺路断路器的消音器，消音器由两个相同的部件形成。
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公开(公告)号：EP0308213B1
公开(公告)日：1993-11-24
申请号：EP88308522.7
申请日：1988-09-15
发明人： Allan, David Thomson
IPC分类号： E04G23/00
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