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1. 发明公开

EP2497865A2 Piping guard for an operating machine 有权
标题翻译： Rohrleitungsschutz einer Betriebsmaschine
公开(公告)号：EP2497865A2
公开(公告)日：2012-09-12
申请号：EP12158292.8
申请日：2012-03-06
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Norita, Masayuki , Asahi, Shunsuke , Hanakawa, Kazuyoshi
IPC分类号： E02F3/413 , E02F9/22 , B66C3/14
CPC分类号： E02F9/2275 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , E02F3/38 , E02F3/413 , F16B7/18 , F16B37/061
摘要： Inner surfaces of two guard plates (11a) forming a piping guard (11) abut against end surfaces of nut bodies (13) fixed to opposite left and right side surfaces of an arm (8), and bolt through holes (11c) made in the guard plates (11a) are opposed to attachment positions of the nut bodies (13) corresponding thereto, respectively. Then, front end portions of the bolts (12) penetrating the bolt through holes (11c) are screwed into the nut bodies (13). Thus, the piping guard (11) is attached to the arm (8). Stoppers (14) are attached to places of the inner surfaces of the guard plates (11a) to abut against a front end portion of the arm (8) or against the nut bodies (13), to thereby prevent a shearing force from acting on the bolts (12). Thus, it is possible to provide an attachment structure of a piping guard in which the piping guard can be attached to an arm stably without any shearing force acting on bolts attaching the piping guard to the arm.
摘要翻译：形成管道护罩（11）的两个保护板（11a）的内表面与固定在臂（8）的相对的左右侧表面上的螺母本体（13）的端面抵接，并且螺栓通孔（11c）保护板（11a）分别与与其对应的螺母体（13）的安装位置相对。然后，穿过螺栓通孔（11c）的螺栓（12）的前端部螺合到螺母体（13）中。因此，管道护罩（11）附接到臂（8）。止动件（14）附接到防护板（11a）的内表面的位置以抵靠臂（8）的前端部或螺母体（13），从而防止剪切力作用于螺栓（12）。因此，可以提供一种管道护罩的安装结构，其中管道护罩可以稳定地安装到臂上，而没有任何剪切力作用在将管道护罩附接到臂上的螺栓上。

2. 发明授权

EP2497865B1 Piping guard for a material handling machine 有权
公开(公告)号：EP2497865B1
公开(公告)日：2018-08-01
申请号：EP12158292.8
申请日：2012-03-06
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Norita, Masayuki , Asahi, Shunsuke , Hanakawa, Kazuyoshi
IPC分类号： E02F3/413 , E02F9/22 , B66C3/14 , E02F3/38 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , F16B33/00 , F16B7/18 , F16B37/06
CPC分类号： E02F9/2275 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , E02F3/38 , E02F3/413 , F16B7/18 , F16B37/061
摘要： Inner surfaces of two guard plates (11a) forming a piping guard (11) abut against end surfaces of nut bodies (13) fixed to opposite left and right side surfaces of an arm (8), and bolt through holes (11c) made in the guard plates (11a) are opposed to attachment positions of the nut bodies (13) corresponding thereto, respectively. Then, front end portions of the bolts (12) penetrating the bolt through holes (11c) are screwed into the nut bodies (13). Thus, the piping guard (11) is attached to the arm (8). Stoppers (14) are attached to places of the inner surfaces of the guard plates (11a) to abut against a front end portion of the arm (8) or against the nut bodies (13), to thereby prevent a shearing force from acting on the bolts (12). Thus, it is possible to provide an attachment structure of a piping guard in which the piping guard can be attached to an arm stably without any shearing force acting on bolts attaching the piping guard to the arm.

3. 发明公开

EP2497865A3 Piping guard for an operating machine 有权
标题翻译：管道保护的操作机
公开(公告)号：EP2497865A3
公开(公告)日：2016-02-24
申请号：EP12158292.8
申请日：2012-03-06
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： Norita, Masayuki , Asahi, Shunsuke , Hanakawa, Kazuyoshi
IPC分类号： E02F3/413 , E02F9/22 , B66C3/14 , E02F3/38 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , F16B33/00
CPC分类号： E02F9/2275 , B66C1/04 , B66C1/68 , B66C3/00 , B66C13/14 , E02F3/38 , E02F3/413 , F16B7/18 , F16B37/061
摘要： Inner surfaces of two guard plates (11a) forming a piping guard (11) abut against end surfaces of nut bodies (13) fixed to opposite left and right side surfaces of an arm (8), and bolt through holes (11c) made in the guard plates (11a) are opposed to attachment positions of the nut bodies (13) corresponding thereto, respectively. Then, front end portions of the bolts (12) penetrating the bolt through holes (11c) are screwed into the nut bodies (13). Thus, the piping guard (11) is attached to the arm (8). Stoppers (14) are attached to places of the inner surfaces of the guard plates (11a) to abut against a front end portion of the arm (8) or against the nut bodies (13), to thereby prevent a shearing force from acting on the bolts (12). Thus, it is possible to provide an attachment structure of a piping guard in which the piping guard can be attached to an arm stably without any shearing force acting on bolts attaching the piping guard to the arm.

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