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1. 发明授权

EP0746449B1 VALVE ARRANGEMENT IN COMPRESSED AIR DRIVEN MOTORS 失效
标题翻译：在空气阀配置运行的电机
公开(公告)号：EP0746449B1
公开(公告)日：2000-01-05
申请号：EP95911532.0
申请日：1995-02-28
申请人： Atlas Copco Berema Aktiebolag
发明人： HENRIKSSON, Roland , NILSSON, Ake
IPC分类号： B25D9/16 , F01L25/04
CPC分类号： F01L25/04 , B25D9/16
摘要： In a valve arrangement in pneumatic impact motors (10), the housing (40) of a distribution valve has the form of a plastic bowl (46) which is flanged outwardly at the opening and the bottom thereof. A flat valve (50) is movable between the bowl bottom, which forms one valve seat (51) of the valve housing (40), and a bowl cover member (53), which forms the other valve seat (52). The bowl flanges (47, 48) define therebetween a groove which connects with a delivery channel (39) provided in the impact motor (10), this channel delivering compressed air to the flat valve (50) mounted inside the bowl (46). The bowl wall located between the flanges (47, 48) includes calibrated side openings (57, 58) which control the delivery of compressed air to respective valve seats (51, 52) on respective sides of the flat valve (50), this air delivery being an adapted and calibrated delivery.

2. 发明公开

EP0426632A2 Impact motor 失效
标题翻译： Schlagmotor。
公开(公告)号：EP0426632A2
公开(公告)日：1991-05-08
申请号：EP90850351.9
申请日：1990-10-22
申请人： Atlas Copco Berema Aktiebolag
发明人： Elvingsson, Bengt Albert Paul
IPC分类号： F16J9/00 , B25D11/12 , B25D17/06
CPC分类号： B25D11/125 , B25D17/06 , F05C2203/0882 , F05C2225/04 , F16J9/00 , Y10S277/91
摘要： An impact motor comprises a housing (10) with a cylinder (11) therein, in which a reciprocating drive piston (40) via a gas cushion in a working chamber (44) of said cylinder (11) repeatedly drives a hammer piston (15) to impact on and to return from the neck (17) of a tool (20) carried by the machine housing (10). A piston groove (68) is provided adjacent to the front face (70) of the drive piston (40) and the peripheral part of said face (70) is rounded (71) towards said groove (68). A piston ring (41) is of steel having a temperature expansion coefficient substantially equal to the cylinder's (11) and is ground circumferentially to have a close sliding and sealing fit in the cylinder (11). The rounded (71) drive piston face (70) is adapted to the inner diameter of said ring (41) so as to permit the ring (41) to be forced into said groove (68) undeformed to ride on a elastically centering O-ring (69) of heat resistant rubber. The hammer piston (15) can alternatively have a similarly arranged steel or heat resistant plastics material piston ring (16) therearound or be machined to a sliding and sealing fit in the cylinder (11).
摘要翻译：冲击马达包括在其中具有气缸（11）的壳体（10），其中经由所述气缸（11）的工作室（44）中的气垫的往复驱动活塞（40）重复地驱动锤活塞（15））从机器壳体（10）承载的工具（20）的颈部（17）上冲击并返回。活塞槽（68）设置成与驱动活塞（40）的前表面（70）相邻，并且所述面（70）的周边部分朝向所述凹槽（68）被倒圆（71）。活塞环（41）为钢，其温度膨胀系数基本上等于圆筒（11），并且被圆周地研磨以在气缸（11）中具有紧密的滑动和密封配合。圆形（71）的驱动活塞面（70）适于所述环（41）的内径，以便允许环（41）被迫进入所述槽（68）中，环（69）耐热橡胶。锤式活塞（15）可以替代地具有类似布置的钢或耐热塑料材料活塞环（16），或者被加工成在气缸（11）中滑动和密封配合。

3. 发明授权

EP0760732B1 PNEUMATIC IMPACT BREAKER 失效
标题翻译：风动石，PRAHL板厂
公开(公告)号：EP0760732B1
公开(公告)日：2001-05-09
申请号：EP95911533.8
申请日：1995-02-28
申请人： Atlas Copco Berema Aktiebolag
发明人： JOHANSSON, Ingemar, Sven , NILSSON, Ake, Lennart
IPC分类号： B25D17/24 , B25D9/14
CPC分类号： F01L25/04 , B25D9/16 , Y10S173/02
摘要： A pneumatic impact breaker comprises a housing (11) with a cylinder bore (20), a hammer piston (28) with a piston head (63) and an impact delivering stem portion (64), an anvil (14) displaceably supported in a cylinder bore extension (50) and normally abutting against the shank (15) of a working implement (16), an annular energy absorbing air cushion chamber (59) is formed between the hammer piston (28), the cylinder bore (20) and an annular shoulder (49) in the cylinder bore (20), wherein the piston head (63) is formed with two axially spaced end portions (65, 66) for guiding and sealing cooperation with the cylinder bore (20). The length of the piston head (63) is considerably larger than the length of the stem portion (64), and the radial play between each one of the end portions (65, 66) and the cylinder bore (20) is smaller than the play between the stem portion (64) and the cylinder bore extension (50), whereby is guaranteed a non-metallic yet effective sealing cooperation between the stem portion (64) and the cylinder bore extension (50) and an improved tightness of the energy absorbing air cushion chamber (59).

4. 发明公开

EP0914233A1 A DOSAGE DEVICE 失效
标题翻译：剂量装置
公开(公告)号：EP0914233A1
公开(公告)日：1999-05-12
申请号：EP97919866.0
申请日：1997-04-17
申请人： Atlas Copco Berema Aktiebolag
发明人： SAXBÄCK, Lars , KAUPPI, Sune
IPC分类号： B25D17 , F16N7
CPC分类号： F16N7/32 , B25D17/26 , Y10S173/03 , Y10T137/3127 , Y10T137/4238 , Y10T137/8122
摘要： A liquid metering device for a compressed air tool includes a sealable liquid tank (2) whose lower part is connected to the compressed air inlet (3) on the tool downstream from its throttle valve, via a through-flow impeding filter element (7) that is in contact with the liquid. The filter element communicates directly with an upper tank space (8) disposed in the tank (2) above the intended maximum liquid level of the tank.
摘要翻译：一种用于压缩空气工具的液体计量装置包括可密封的液体罐（2），其下部经由通流阻止过滤元件（7）连接到位于工具的节流阀下游的工具上的压缩空气入口（3）即与液体接触。过滤器元件直接与设置在箱体（2）中的上箱体空间（8）连通，该箱体位于箱体的预期最大液位之上。

5. 发明授权

EP0673301B1 TOOL LOCKING MEANS FOR MACHINE HAMMERS 有权
标题翻译：工具夹具机HAMMERS
公开(公告)号：EP0673301B1
公开(公告)日：1999-03-03
申请号：EP94903199.1
申请日：1993-12-14
申请人： ATLAS COPCO BEREMA AKTIEBOLAG
发明人： BRÄNNSTRÖM, Östen, Kurt , FREDIN, Stig, Bertil, Artur
IPC分类号： B25D17/08
CPC分类号： B25D17/08 , Y10T279/17042 , Y10T279/17085 , Y10T279/17923 , Y10T403/585 , Y10T403/7018
摘要： In the front head (11) of a machine hammer (10) transversely disposed wedges (18) are adapted to lock the working tool (12) axially movably by form-restricted cooperation with side recesses (16) on the working tool (12). Each wedge (18) is locked in the front head (11) by a key (20), which extends across the wedge (18) into engagement with a transverse bore (21) therein. The key (20) has a releasable locking device consisting of a locking element affixed in the front head (11) and formed by a polyurethane block (24). The block (24) is provided with a through bore (27) and has elastically form-recovering material properties. When, for purposes of locking the key (20), the wedge (18) is pressed through the bore of the block (24), the latter is due to expand resiliently into an annular groove (22) on the key (20), thereby locking the key (20) in the front head (11) and securing its wedge (18) locking function. In use of two wedges (18), one single key (20) is set to lock both wedges (18) and is locked in its turn by one single block (24).

6. 发明公开

EP0426631A3 Hammer machine 失效
标题翻译： IMPULSE MOTOR
公开(公告)号：EP0426631A3
公开(公告)日：1991-09-18
申请号：EP90850350.1
申请日：1990-10-22
申请人： Atlas Copco Berema Aktiebolag
发明人： Jakobsson, Gunnar Stefan
IPC分类号： B25D11/12 , B25D17/06
CPC分类号： B25D11/125
摘要： An impulse motor for a hand held hammer machine comprises a housing (10) with a cylinder (11) therein, in which a reciprocating drive piston (40) via a gas cushion in a working chamber (44) of said cylinder (11) repeatedly drives a hammer piston (15) to impact on and to return from a tool (20) carried by the machine housing (10). The drive piston (40) has an axially protruding reduced diameter damping piston (50) thereon adapted to prevent piston encounter collision by arresting the return movement of said hammer piston (15) towards the drive piston (40) in a cooperating damping cylinder (51) provided on the hammer piston (15). The damping piston (50) has two diametrical steps (64,65) formed thereon, of which an outer step (64) is long and has a clearance relative to said damping cylinder (51) enabling during arresting a braking action therebetween by gas friction in said clearance. The inner diametrical step (65) at the root of said damping piston (50) is short and with a fit relative to said damping cylinder (51) sufficient to brake said hammer piston (15) resiliently to halt due to gas trapped in said damping cylinder (51).

7. 发明公开

EP0426631A2 Hammer machine 失效
标题翻译： Impulsmotor。
公开(公告)号：EP0426631A2
公开(公告)日：1991-05-08
申请号：EP90850350.1
申请日：1990-10-22
申请人： Atlas Copco Berema Aktiebolag
发明人： Jakobsson, Gunnar Stefan
IPC分类号： B25D11/12 , B25D17/06
CPC分类号： B25D11/125
摘要： An impulse motor for a hand held hammer machine comprises a housing (10) with a cylinder (11) therein, in which a reciprocating drive piston (40) via a gas cushion in a working chamber (44) of said cylinder (11) repeatedly drives a hammer piston (15) to impact on and to return from a tool (20) carried by the machine housing (10). The drive piston (40) has an axially protruding reduced diameter damping piston (50) thereon adapted to prevent piston encounter collision by arresting the return movement of said hammer piston (15) towards the drive piston (40) in a cooperating damping cylinder (51) provided on the hammer piston (15). The damping piston (50) has two diametrical steps (64,65) formed thereon, of which an outer step (64) is long and has a clearance relative to said damping cylinder (51) enabling during arresting a braking action therebetween by gas friction in said clearance. The inner diametrical step (65) at the root of said damping piston (50) is short and with a fit relative to said damping cylinder (51) sufficient to brake said hammer piston (15) resiliently to halt due to gas trapped in said damping cylinder (51).
摘要翻译：用于手持式锤击机的脉冲电动机包括其中具有气缸（11）的壳体（10），其中在所述气缸（11）的工作室（44）中经由气垫重复地往复运动的驱动活塞（40）驱动锤式活塞（15）冲击并从机器壳体（10）承载的工具（20）返回。驱动活塞（40）在其上具有轴向突出的减小直径的阻尼活塞（50），其适于通过在协作的阻尼缸（51）中阻止所述锤式活塞（15）朝向驱动活塞（40）的返回运动来防止活塞遇到碰撞）设置在锤式活塞（15）上。阻尼活塞（50）在其上形成有两个直径台阶（64,65），其中外台阶（64）较长，并且具有相对于所述阻尼缸（51）的间隙，使得能够通过气摩擦阻止其间的制动作用在说清除。在所述阻尼活塞（50）的根部处的内直径台阶（65）较短并且相对于所述阻尼缸（51）具有足够的制动力，以便弹性地制动所述锤式活塞（15），由于所述阻尼器气缸（51）。

8. 发明公开

EP0426630A2 Portable percussive machine 失效转让
标题翻译： Tragbare Schlagmaschine。
公开(公告)号：EP0426630A2
公开(公告)日：1991-05-08
申请号：EP90850349.3
申请日：1990-10-22
申请人： Atlas Copco Berema Aktiebolag
发明人： Gustafsson, Klas Rune Lennart
IPC分类号： B25D11/12 , E21C3/32
CPC分类号： B25D11/125 , B25D11/005 , B25D2250/131
摘要： A percussive machine comprises a housing (10) with a cylinder (11) therein, in which a reciprocating drive piston (40) via a gas cushion in a working chamber (44) repeatedly drives a hammer piston (15) to impact on the neck (17) of a tool (20) carried by the housing (10). At empty blows with the neck (17) out of reach, the hammer piston (15) is thrown forwardly and caught pneumatically in a braking chamber (47) at the bottom end (12) of the cylinder (11). The braking is combined with an elastic yielding of the bottom end (12) against the action of a recoil spring (23) in the housing (10). The pressure in the braking chamber (47) during such yielding is controlled by throttling apertures (48) in the cylinder (11) uncovered by the bottom end (12). The hammer piston (15) is thus checked to halt pneumatically by throttling avoiding to collide with the bottom end (12) and takes inactive position below ports (46) in the cylinder wall through which the working chamber (44) is relieved and ventilated. The bottom end (12) is returned upon yielding by the recoil spring (23) and closes the throttling apertures (48) by check valve action.
摘要翻译：冲击机包括在其中具有气缸（11）的壳体（10），其中通过工作室（44）中的气垫的往复运动驱动活塞（40）重复地驱动锤活塞（15）冲击颈部（20）承载的工具（20）的底部（17）。在颈部（17）无法触及的情况下，锤式活塞（15）向前抛出并气动地夹在气缸（11）的底端（12）处的制动室（47）中。制动与抵靠壳体（10）中的反冲弹簧（23）的作用的底端（12）的弹性屈服组合。在这种屈服期间制动室（47）中的压力由未被底端（12）覆盖的气缸（11）中的节流孔（48）控制。因此，锤式活塞（15）被检查以通过节流气动地停止，以避免与底端（12）碰撞，并且在气缸壁中的工作室（44）被释放和通风的端口（46）下方处于非活动位置。底端（12）在回弹弹簧（23）屈服后返回，并通过止回阀动作关闭节流孔（48）。

9. 发明公开

EP0388383A1 Hammer machine 失效转让
标题翻译： Hammermaschine。
公开(公告)号：EP0388383A1
公开(公告)日：1990-09-19
申请号：EP90850081.2
申请日：1990-02-28
申请人： Atlas Copco Berema Aktiebolag
发明人： Lagne, Ulf Jöran
IPC分类号： B25D11/12
CPC分类号： B25D17/06 , B25D11/125
摘要： A hammer machine comprises a machine housing (10) with a cylinder (11) in which a reciprocating drive piston (40) via a gas cushion (44) drives a hammer piston (15) to impact on respectively to move away from a tool (20) carried by the housing (10). The movement of the hammer piston (15) away from the tool (20) is supported by underpressure in the gas cushion (44) and rebound. A connecting passage (52) in the drive piston (40), the cylinder (11) or the hammer piston (15) comprises a one-way valve (57) and a throttling means (53) via which the gas cushion (44) is replenished by ambient air for regulating the gas cushion pressure during operation of the drive piston. The one-way valve (57) closes to prevent escape of gas from the gas cushion (44). A damping cylinder (51) in communication with the connecting passage (52) can be provided on one of the pistons (40;15), which, when the pistons tend to collide, sealingly cooperates with a damping piston (50) on the other piston (15;40) so as to prevent collision.
摘要翻译：锤机包括具有气缸（11）的机壳（10），经由气垫（44）的往复驱动活塞（40）驱动锤活塞（15）分别冲击以远离工具（ 20）。锤式活塞（15）远离工具（20）的移动由气垫（44）中的负压支撑并且回弹。驱动活塞（40）中的连接通道（52），气缸（11）或锤式活塞（15）包括单向阀（57）和节流装置（53），气垫（44）由环境空气补充，用于调节驱动活塞运行期间的气垫压力。单向阀（57）关闭以防止气体从气垫（44）逸出。一个与连接通道（52）连通的阻尼缸（51）可以设置在一个活塞（40; 15）上，当活塞倾向于碰撞时，与另一个的阻尼活塞（50）密封配合活塞（15; 40），以防止碰撞。

10. 发明授权

EP0760731B1 PNEUMATIC IMPACT BREAKER 失效
标题翻译：气动冲击工具
公开(公告)号：EP0760731B1
公开(公告)日：2002-05-02
申请号：EP95911534.6
申请日：1995-02-28
申请人： Atlas Copco Berema Aktiebolag
发明人： JOHANSSON, Ingemar, Sven , NILSSON, Ake, Lennart
IPC分类号： B25D17/04 , B25F5/02
CPC分类号： B25D9/16 , F01L25/04
摘要： A pneumatic impact breaker which comprises a housing (11) with a rear cylinder head (12), one or two handles (18, 19) and a longitudinal cylinder bore (20), a hammer piston (28) reciprocably guided in the cylinder bore (20), a front portion (55) of the housing (11) including socket means (13, 17) for receiving the rear impact receiving end (15) of a working implement (16), an air distributing valve (26, 27) located in the rear part of the cylinder bore (20) and arranged to direct motive pressure air alternatingly to the opposite ends of the hammer piston (28) to make the latter reciprocate in the cylinder bore (20), and the rear cylinder head (12) comprises a plug extending into the rear end of the cylinder bore (20) and forming an axial support for the air distributing valve (26, 27), whereby two parallel wall portions (29, 30) extend rearwardly from the housing (11) and which together with a transverse wedge bolt (32) form a mounting means for said cylinder head (12) and said handles (18, 19).

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