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公开(公告)号：EP3085880A1
公开(公告)日：2016-10-26
申请号：EP13899510.5
申请日：2013-12-18
发明人： MORITA, Yuuji , TAN, Seiichiro
CPC分类号： B25D9/18 , B25D9/26 , B25D2250/131 , E21B1/00 , E21B4/06
摘要： The impact-driven tool of the present invention includes a cylinder and a piston slidably inserted into the cylinder and having a large-diameter portion. The cylinder includes: a chamber on one end side that is a space defined by an outer surface of the piston located more on the one end side in the axial direction than the large-diameter portion of the piston and an inner surface of the cylinder; a chamber on the other end side that is a space defined by an outer surface of the piston located more on the other end side in the axial direction than the large-diameter portion of the piston and an inner surface of the cylinder; a communication path that allows the chamber on one end side and the chamber on the other end side to communicate with each other; and a valve chamber that is continuous with one end side in the axial direction of the communication path, and a valve body for piston lifting control that is incorporated so as to be movable up and down is provided in the valve chamber. The communication path is opened and closed by the valve body, thereby enabling the reduction in diameter and length of the valve body, so that the conduits of the hydraulic oil are maintained while the weight of the valve body is reduced.
摘要翻译： 本发明的冲击驱动工具包括可滑动地插入到气缸中并且具有大直径部分的气缸和活塞。 气缸包括：在一端侧的腔室，其是由位于活塞的大直径部分的轴向上的一端侧的活塞的外表面和气缸的内表面限定的空间; 在另一端侧的室，其是由活塞的外表面在轴向上的另一端侧比活塞的大直径部分和气缸的内表面限定的空间; 连通路径，其允许一端侧的腔室和另一端侧的腔室相互连通; 以及与所述连通路径的轴向的一端侧连续的阀室，并且在所述阀室中设置有用于上下移动的用于活塞提升控制的阀体。 连通路径由阀体打开和关闭，从而能够减小阀体的直径和长度，从而在阀体的重量减小的同时保持液压油的导管。
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公开(公告)号：EP3085880B1
公开(公告)日：2018-10-24
申请号：EP13899510.5
申请日：2013-12-18
发明人： MORITA, Yuuji , TAN, Seiichiro
CPC分类号： B25D9/18 , B25D9/26 , B25D2250/131 , E21B1/00 , E21B4/06
摘要： The impact-driven tool of the present invention includes a cylinder and a piston slidably inserted into the cylinder and having a large-diameter portion. The cylinder includes: a chamber on one end side that is a space defined by an outer surface of the piston located more on the one end side in the axial direction than the large-diameter portion of the piston and an inner surface of the cylinder; a chamber on the other end side that is a space defined by an outer surface of the piston located more on the other end side in the axial direction than the large-diameter portion of the piston and an inner surface of the cylinder; a communication path that allows the chamber on one end side and the chamber on the other end side to communicate with each other; and a valve chamber that is continuous with one end side in the axial direction of the communication path, and a valve body for piston lifting control that is incorporated so as to be movable up and down is provided in the valve chamber. The communication path is opened and closed by the valve body, thereby enabling the reduction in diameter and length of the valve body, so that the conduits of the hydraulic oil are maintained while the weight of the valve body is reduced.
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