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公开(公告)号：US20090321226A1
公开(公告)日：2009-12-31
申请号：US12147228
申请日：2008-06-26
CPC分类号： H01H27/002 , H01H3/20
摘要： An operating head (11) for a safety switch (100) includes a key-operated cam mechanism (12) and a plunger (27) contacting the cam mechanism (12) and extending from the cam mechanism (12). In the safety switch (100), the plunger (27) is displaceable between first and second positions responsive to the cam mechanism (12). The safety switch (100) further includes at least one securing member (127) interacting with the plunger (27) and displaceable between a locked and a released position. When the securing member (127) is in the released position, movement of the plunger (27) is allowed. When the plunger (27) is in the second position, the securing member (127) is displaced from the released position to the locked position, which secures the plunger (27) in the second position.
摘要翻译： 用于安全开关（100）的操作头（11）包括键操作的凸轮机构（12）和与凸轮机构（12）接触并从凸轮机构（12）延伸的柱塞（27）。 在安全开关（100）中，柱塞（27）可响应于凸轮机构（12）在第一和第二位置之间移动。 安全开关（100）还包括与柱塞（27）相互作用并且可在锁定位置和释放位置之间移动的至少一个固定构件（127）。 当固定构件（127）处于释放位置时，允许柱塞（27）的移动。 当柱塞（27）处于第二位置时，固定构件（127）从释放位置移动到锁定位置，其将柱塞（27）固定在第二位置。
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公开(公告)号：US08017880B2
公开(公告)日：2011-09-13
申请号：US12147228
申请日：2008-06-26
IPC分类号： H01H9/20
CPC分类号： H01H27/002 , H01H3/20
摘要： An operating head (11) for a safety switch (100) includes a key-operated cam mechanism (12) and a plunger (27) contacting the cam mechanism (12) and extending from the cam mechanism (12). In the safety switch (100), the plunger (27) is displaceable between first and second positions responsive to the cam mechanism (12). The safety switch (100) further includes at least one securing member (127) interacting with the plunger (27) and displaceable between a locked and a released position. When the securing member (127) is in the released position, movement of the plunger (27) is allowed. When the plunger (27) is in the second position, the securing member (127) is displaced from the released position to the locked position, which secures the plunger (27) in the second position.
摘要翻译： 用于安全开关（100）的操作头（11）包括键操作的凸轮机构（12）和与凸轮机构（12）接触并从凸轮机构（12）延伸的柱塞（27）。 在安全开关（100）中，柱塞（27）可响应于凸轮机构（12）在第一和第二位置之间移动。 安全开关（100）还包括与柱塞（27）相互作用并且可在锁定位置和释放位置之间移动的至少一个固定构件（127）。 当固定构件（127）处于释放位置时，允许柱塞（27）的移动。 当柱塞（27）处于第二位置时，固定构件（127）从释放位置移动到锁定位置，其将柱塞（27）固定在第二位置。
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公开(公告)号：US20090050453A1
公开(公告)日：2009-02-26
申请号：US11895058
申请日：2007-08-23
IPC分类号： H01H9/04
摘要： A safety switch apparatus includes one or more switching elements in association with an operating head. A housing and a cover are provided for maintaining the switching element(s) therein. A switch cavity is formed between the housing and the cover to maintain the switching element(s) in the switch cavity between the housing and the cover. A plurality of cover-housing threads are provided by the housing and the cover in association with a plunger extending between the switch cavity and the operating head, thereby providing a weather-sealed and explosion-proof barrier for protecting the switching element(s).
摘要翻译： 安全开关装置包括与操作头相关联的一个或多个开关元件。 提供了一个壳体和盖子，用于将开关元件保持在其中。 在壳体和盖之间形成开关腔，以将开关腔中的开关元件保持在壳体和盖之间。 与开关腔和操作头之间延伸的活塞相关联，由壳体和盖提供多个盖壳螺纹，由此提供用于保护开关元件的气密密封和防爆屏障。
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